Country: Netherlands

The Netherlands

Country: The Netherlands	Year: 2021
Title: ICT-gebruik bedrijven 2021
Organisation running the survey: Statistics Netherlands
Survey period: 24.03.2021 – 29.09.2021 for general survey and survey on micro-enterprises	Sampling and statistical methodology: Last update of the business register 01.12.2020 Sample drawn on 05.03.2021. It is not actively co-ordinated, however, the sampling frames for both statistics were last updated at 1 December 2020. Stratification: Enterprises with 100 or more persons employed are all included in the gross sample. For enterprises with 2-100 persons employed a random sample is used, stratified by Nace (32) x Size class (6). Sample size is based on prior experiences and cost considerations. For optimal distribution of sample units across the strata, the Neymann allocation method is used. Enterprises that are drawn in other business survey samples have a reduced likelihood of being drawn into the sample of this survey.
Reference period: The model questionnaire was followed.
Collection method: Stand-alone and voluntary survey. Web survey only.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L, M and N, division 95.1. Enterprises with 2 or more employed persons. The geographic scope of the survey is the Netherlands (excluding the islands in the Carribean that are part of the Kingdom of the Netherlands).
Population size: 290.297 enterprises (whereof 236.329 ent. 2-9)
Sample size: 24.218 enterprises (whereof 10.571 ent. 2-9)
Overall response rate: 75% for enterprises 10+ and 45% for micro-enterprises
Main methodological differences compared to previous survey(s): NACE Rev. 2 division 75 covered. Covered micro-enterprises since 2018 survey

Country: The Netherlands	Year: 2020
Title: ICT-gebruik bedrijven 2020
Organisation running the survey: Statistics Netherlands
Survey period: 25.02.2020 – 29.09.2020 for general survey and survey on micro-enterprises	Sampling and statistical methodology: Last update of the business register 01.12.2019 Sample drawn on 10.02.2020. It is not actively co-ordinated, however, the sampling frames for both statistics were last updated at 1 December 2019. Stratification: Enterprises with 100 or more persons employed are all included in the gross sample. For enterprises with 2-100 persons employed a random sample is used, stratified by Nace (32) x Size class (6). Sample size is based on prior experiences and cost considerations. For optimal distribution of sample units across the strata, the Neymann allocation method is used. Enterprises that are drawn in other business survey samples have a reduced likelihood of being drawn into the sample of this survey.
Reference period: The model questionnaire was followed.
Collection method: Stand-alone and voluntary survey. Web survey only.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74 and 95.1. Enterprises with 2 or more employed persons. The results refer to the whole country (excluding the islands in the Caribbean that are part of the Kingdom of the Netherlands).
Population size: 242.283 enterprises (whereof 190.171 ent. 2-9)
Sample size: 21.825 enterprises (whereof 8.619 ent. 2-9)
Overall response rate: 77% for enterprises 10+ and 52% for micro-enterprises
Main methodological differences compared to previous survey(s): Covered micro-enterprises since 2018 survey

Country: The Netherlands	Year: 2019
Title: ICT-gebruik bedrijven 2019
Organisation running the survey: Statistics Netherlands
Survey period: 7th March – 29 Aug 2019 for general survey and survey on micro-enterprises	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same Business Register as the Structural Business Statistics and at the same reference date: 01/12/2018. Sample drawn on 31/01/2019. It is not actively co-ordinated, however, the sampling frames for both statistics were last updated at 1 December 2018. Stratification: Enterprises with 250 or more persons employed are all included in the gross sample. For enterprises with 2-250 persons employed a random sample is used, stratified by Nace (32) x Size class (6). Sample size is based on prior experiences and cost considerations. For optimal distribution of sample units across the strata, the Neymann allocation method is used. Enterprises that are drawn in other business survey samples have a reduced likelihood of being drawn into the sample of this survey.
Reference period: as in MQ
Collection method: Web survey only. It is not mandatory and stand-alone survey.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74 and 95.1. Enterprises with 2 or more employed persons. The results refer to the whole country (excluding the islands in the Caribbean that are part of the Kingdom of the Netherlands).
Population size: 242.283 enterprises (whereof 190.796 ent. 2-9)
Sample size: 20.124 enterprises (whereof 8.706 ent. 2-9)
Overall response rate: 68% for enterprises 10+ and 50% for micro-enterprises
Main methodological differences compared to previous survey(s): Covered micro-enterprises since 2018 survey

Country: The Netherlands	Year: 2018
Title: ICT-gebruik bedrijven 2018
Organisation running the survey: Statistics Netherlands
Survey period: 22nd March – 29 Aug 2018 for general survey and survey on micro-enterprises	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same Business Register as the Structural Business Statistics and at the same reference date: 01/12/2017. Sample drawn on 15/12/2017. Frame population is not actively co-ordinated with SBS population. Stratification: Enterprises with 250 or more persons employed are all included in the gross sample. For enterprises with 2-250 persons employed a random sample is used, stratified by Nace (32) x Size class (6). Sample size is based on prior experiences and cost considerations. For optimal distribution of sample units across the strata, the Neymann allocation method is used. Enterprises that are drawn in other business survey samples have a reduced likelihood of being drawn into the sample of this survey.
Reference period: as in MQ
Collection method: Web survey only. It is not mandatory and stand-alone survey.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74 and 95.1. Enterprises with 2 or more employed persons. The results refer to the whole country (excluding the islands in the Caribbean that are part of the Kingdom of the Netherlands).
Population size: 243.854 enterprises (whereof 193.920 ent. 2-9)
Sample size: 19.796 enterprises (whereof 8.797 ent. 2-9)
Overall response rate: 71% for enterprises 10+ and 50% for micro-enterprises
Main methodological differences compared to previous survey(s): Covered micro-enterprises in 2018

Country: The Netherlands	Year: 2017
Title: ICT-gebruik bedrijven 2017
Organisation running the survey: Statistics Netherlands
Survey period: 22nd Febr. – 24^th August 2017	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same Business Register as the Structural Business Statistics and at the same reference date: 01/12/2016. Sample drawn on 15/12/2016. Frame population is not actively co-ordinated with SBS population. Stratification: Enterprises with 250 or more persons employed are all included in the gross sample. For enterprises with 10-250 persons employed a random sample is used, stratified by Nace (32) x Size class (6). Sample size is based on prior experiences and cost considerations. For optimal distribution of sample units across the strata, the Neymann allocation method is used. Enterprises that are drawn in other business survey samples have a reduced likelihood of being drawn into the sample of this survey.
Reference period: as in MQ
Collection method: Web survey only. It is a mandatory and stand-alone survey.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74 and 95.1. Enterprises with 10 or more employed persons. The results refer to the whole country (excluding the islands in the Caribbean that are part of the Kingdom of the Netherlands).
Population size: 48.573 enterprises
Sample size: 10.731 enterprises
Overall response rate: 72.9%
Main methodological differences compared to previous survey(s): none

Country: The Netherlands	Year: 2016
Title: ICT-gebruik bedrijven 2016
Organisation running the survey: Statistics Netherlands
Survey period: 26^th February – 20^th Sept. 2016	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same Business Register as the Structural Business Statistics and at the same reference date: 01/12/2015. Sample drawn on 15/12/2015. Frame population is not actively co-ordinated with SBS population. Stratification: Enterprises with 250 or more persons employed are all included in the gross sample. For enterprises with 10-250 persons employed a random sample is used, stratified by Nace (32) x Size class (6). Sample size is based on prior experiences and cost considerations. For optimal distributon of sample units across the strata, the Neymann allocation method is used. Enterprises that are drawn in other business survey samples have a reduced likelihood of being drawn into the sample of this survey.
Reference period: as in MQ
Collection method: Web survey. Respondents only receive a paper form at their own request. Very few (less than 50) respondents used a paper form. It is a mandatory and stand alone survey.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74 and 95.1. Enterprises with 10 or more employed persons. The results refer to the whole country.
Population size: 47.986 enterprises
Sample size: 10.577 enterprises
Overall response rate: 75%
Main methodological differences compared to previous survey(s): none

Country: The Netherlands	Year: 2015
Title: ICT-gebruik bedrijven 2015
Organisation running the survey: Statistics Netherlands
Survey period: 12^th March – 1^st October 2015	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same Business Register as the Structural Business Statistics and at the same reference date: 1-12-2014. In principle, there is no change in the population frame during the course of the statistical process. In practice, however, we may find out that some enterprises that were originally defined in our population may be, in fact, no longer active for some reason. Due to administrative delays they may no longer have existed in most of the reference period without us knowing this in time. In these cases, we may adjust the population somewhat 'a posteriori'. However, these adjustments are insignificantly small in number. Stratification: The target variables (of year t-1) used to allocate the sample were: - the number of enterprises receiving orders online (a qualitative variable). - the number of fte's spent on developing own account software (a quantitative variable). The population/sample was divided into 61 NACE-aggregates and 20 groups of size classes resulting into 610 cells/strata. About 12 000 enterprises were allocated in a way that on a national level the relative confidence intervals for the target variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample. In principle, the Neyman allocation was used to allocate the 12 000 enterprises over the different strata. The allocation is therefore based on the variance of the target variable in the relevant strata. The most recent allocation was determined in the autumn of 2011, based on the data of the 2011 Survey. A system to spread the 'administrative burden' for enterprises is used to avoid -if possible- that certain enterprises receive many questionnaires in year 't' and others none or just a few. So, the overlap with other surveys in the same period (e.g. the structural business statistics survey) is minimized.
Reference period: as in MQ
Collection method: Web survey. Respondents only receive a paper form at their own request. Very few (less than 50) respondents used a paper form. It is a mandatory and stand alone survey.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74 and 95.1. Enterprises with 10 or more employed persons. The results refer to the whole country.
Population size: 47.775 enterprises
Sample size: 10.612 enterprises
Overall response rate: 73%
Main methodological differences compared to previous survey(s): Several changes had been implemented in previous years (2013 and 2014).

Country: The Netherlands	Year: 2014
Title: ICT-gebruik bedrijven 2014
Organisation running the survey: Statistics Netherlands
Survey period: 5^th March 2014 – 15^th Sept 2014	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date i.c. 1-12-2013. In principle there is no change in the population frame during the course of the statistical process. In practice however, we may find out that some enterprises that were originally defined in our population are in fact no longer active for some reason. Due to administrative delays they may no longer have existed in most of the reference period without us knowing this in time. In these cases we may adjust the population somewhat a posteriori. However, these adjustments are insignificantly small in number. Stratification: The target-variables (of year t-1) used to allocate the sample were: - the number of enterprises receiving orders online (a qualitative variable) - the number of fte’s spent on developing own account software (a quantitative variable). The population/sample was divided into 61 NACE-aggregates and 10 groups of size classes resulting in 610 cells/strata. Ca. 12 000 enterprises were allocated in a way that on a national level the relative confidence intervals for the target variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample. In principle the Neyman allocation was used to allocate the 12 000 enterprises over the different strata. The allocation is therefore based on the variance of the target variable in the relevant strata.
Reference period: as in MQ
Collection method: Web survey. Respondents only receive a paper form at their own request. It is a mandatory and stand alone survey.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74 and 95.1. Enterprises with 10 or more employed persons. The results refer to the whole country.
Population size: 49.268 enterprises
Sample size: 10.496 enterprises
Overall response rate: 70%
Main methodological differences compared to previous survey(s): Several changes had been implemented in 2013. In 2014, no further changes have been required.

Country: The Netherlands	Year: 2013
Title: ICT-gebruik bedrijven 2013
Organisation running the survey: Statistics Netherlands
Survey period: 5^th June 2013 – 19^th Nov 2013 (sending out/receiving back the questionnaires.)	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date i.c. 1-12-2012. In principle there is no change in the population frame during the course of the statistical process. In practice however, we may find out that some enterprises that were originally defined in our population are in fact no longer active for some reason. Due to administrative delays they may no longer have existed in most of the reference period without us knowing this in time. In these cases we may adjust the population somewhat a posteriori. However, these adjustments are insignificantly small in number. Stratification: The target-variables (of year t-1) used to allocate the sample were: - the number of enterprises receiving orders online (a qualitative variable) - the number of fte’s spent on developing own account software (a quantitative variable). The population/sample was divided into 61 NACE-aggregates and 10 groups of size classes resulting in 610 cells/strata. Ca. 12 000 enterprises were allocated in a way that on a national level the relative confidence intervals for the target variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample. In principle the Neyman allocation was used to allocate the 12 000 enterprises over the different strata. The allocation is therefore based on the variance of the target variable in the relevant strata. The most recent allocation was determined in the autumn of 2011, based on the data of the 2011 survey. A system to ‘spread’ the administrative burden for enterprises is used to avoid - if possible - that certain enterprises receive many questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period (e.g. the structural business statistics survey) is minimized.
Reference period: In line with Eurostat except for "January 2013" the "current situation" is used.
Collection method: Enterprises were informed by post about a website and a password, where they could answer the questions. Depending on the initial response one or two written reminders were sent out. Enterprises also had the opportunity to use a paper questionnaire. It is a voluntary and stand alone survey.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74, groups 65.1, 65.2 and 95.1 and classes 64.19, 64.92, 66.12 and 66.19. Enterprises with 10 or more employed persons. The results refer to the whole country.
Population size: 50.882 enterprises
Sample size: 10.840 enterprises
Overall response rate: 71%
Main methodological differences compared to previous survey(s): - The reference period was changed to the current situation instead of January. - The methodology for measuring e-commerce was changed to improve the quality of results. Specific units were selectively added to the sample. These are enterprises that generate a relative large amount of their turnover through e-commerce. Also we now ask enterprises what their turnover was in euros and what amount they realised through online sales and purchases also in euros. Before, we asked percentages of turnover and purchases. - At several questions we added the instruction that estimates suffice. This was also done in conformity with the advice of WP2 of the pre-testing project.

Country: The Netherlands	Year: 2012
Title: ICT-gebruik bedrijven 2011
Organisation running the survey: Statistics Netherlands
Survey period: 17th March 2012 / 20^th Sept 2012 (sending out/receiving back the questionnaires.)	Sampling and statistical methodology: The population (pop) is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date (1.12.2011). Stratification: The target-variables (of year t-1) used to allocate the sample were: - the number of enterprises receiving orders online (a qualitative variable) - the number of fte’s spent on developing own account software (a quantitative variable). The population/sample was divided into 61 NACE-aggregates and 10 groups of size classes resulting in 610 cells/strata. Ca. 12 000 enterprises were allocated in a way that on a national level the relative confidence intervals for the target variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample. In principle the Neyman allocation was used to allocate the 12 000 enterprises over the different strata. The allocation is therefore based on the variance of the target variable in the relevant strata. The most recent allocation was determined in the autumn of 2011, based on the data of the 2011 survey. A system to ‘spread’ the administrative burden for enterprises is used to avoid - if possible - that certain enterprises receive many questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period (e.g. the structural business statistics survey) is minimized.
Reference period: The reference periods are now completely in line with those in the model questionnaire. In earlier years there were some deviations but for 2012 these no longer exist.
Collection method: Enterprises were informed by post about a website and a password, where they could answer the questions. Depending on the initial response one or two written reminders were sent out. Enterprises also had the opportunity to use a paper questionnaire. It is a voluntary and stand alone survey.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74, groups 65.1, 65.2 and 95.1 and classes 64.19, 64.92, 66.12 and 66.19. Enterprises with 10 or more employed persons. The results refer to the whole country.
Population size: 51.128 (+438 fin.) enterprises
Sample size: 10.583 (+270 fin.) enterprises
Overall response rate:67%
Main methodological differences compared to previous survey(s): See also Summary methodology 4. – Footnotes

Country: The Netherlands	Year: 2011
Title: ICT-gebruik bedrijven 2010
Organisation running the survey: Statistics Netherlands
Survey period: 1st March 2011 / (sending out/receiving back the questionnaires.)	Sampling and statistical methodology: The population (pop) is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date (1.12.2010). Stratification: target-variables (of year t-1) used to allocate the sample were: - the number of enterprises receiving orders online (a qualitative variable) - the number of fte’s spent on developing own account software (a quantitative variable). The population/sample was divided into 61 NACE-aggregates and 10 groups of size classes resulting in 610 cells/strata. Ca. 10 000 enterprises were allocated in a way that on a national level the relative confidence intervals for the target variables were as small as possible. Enterprises with 250+ employed persons were integrally included in the sample. In principle the Neyman allocation was used to allocate the 10 000 enterprises over the different strata. The allocation is therefore based on the variance of the target variable in the relevant strata. A system to ‘spread’ the administrative burden for enterprises is used to avoid - if possible - that certain enterprises receive many questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period (e.g. the structural business statistics survey) is minimized.
Reference period: The reference period of all questions is the year 2010 except for the question on the number of persons employed.
Collection method: Enterprises were informed by post about a website and a password, where they could answer the questions. Enterprises also had the opportunity to use a paper questionnaire. It is a voluntary and stand alone survey.
Population covered: NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74, groups 65.1, 65.2 and 95.1 and classes 64.19, 64.92, 66.12 and 66.19. Enterprises with 10 or more employed persons. The results refer to the whole country.
Population size: 49.546 enterprises
Sample size: 9.871 enterprises
Overall response rate: 71%
Main methodological differences compared to previous survey(s): See also Summary methodology 4. – Footnotes

Country: The Netherlands

Year: 2010

Title: ICT-gebruik bedrijven 2009

Organisation running the survey: Statistics Netherlands

Survey period: 15^th March 2010/

(sending out/receiving back the questionnaires.)

Sampling and statistical methodology:

The population (pop) is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date (1.12.2009).

Stratification:

The target-variables (of year t-1) used to allocate the sample were:
- the number of enterprises receiving orders online (a qualitative variable)
- the number of fte’s spent on developing own account software (a quantitative variable).

The population/sample was divided into 61 NACE-aggregates and 10 groups of size classes resulting in 610 cells/strata.

Ca. 11 000 enterprises were allocated in a way that on a national level the relative confidence intervals for the target variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample.

In principle the Neyman allocation was used to allocate the 11 000 enterprises over the different strata. The allocation is therefore based on the variance of the target variable in the relevant strata.

A system to ‘spread’ the administrative burden for enterprises is used to avoid - if possible - that certain enterprises receive many questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period (e.g. the structural business statistics survey) is minimized.

Reference period: The reference period of all questions is the year 2009 except for the question on the number of persons employed.

Collection method:

Two versions were used: an internet survey and a paper form. Enterprises had the opportunity to choose but they were encouraged to use the internet survey. The vast majority did so, that much is clear by now.
It is a voluntary and stand alone survey.

Population covered:

NACE Rev. 2 sections C, D, E, F, G, H, I, J, L and N, divisions 69-74, groups 65.1, 65.2 and 95.1 and classes 64.19, 64.92, 66.12 and 66.19.

Enterprises with 10 or more employed persons.

The results refer to the whole country.

Population size: 55.868 enterprises

Sample size: 10.921

Overall response rate: 77%

Main methodological differences compared to previous survey(s):

The sample design was updated. New fractions have been determined based on the survey results of the previous year.

A major methodological change was the shift to internet surveying. This was done for the first time in reference year 2010.

See also Summary methodology 4. – Footnotes

Country: Netherlands

Year: 2009

Title: ICT-gebruik bedrijven 2008

Organisation running the survey: Statistics Netherlands

Survey period: 2nd March 2009/

(sending out/receiving back the questionnaires.)

Sampling and statistical methodology:

The population (pop) is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date (1.12.2008).

Stratification:

NACE Rev 2: The pop/sample was divided into 61 NACE-aggregates and 10 groups of size-classes resulting in 610 cells/strata.

Ca. 11 000 enterprises were allocated in a way that on a national level the relative confidence-intervals for the target-variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample.

In principle the Neyman-allocation was used to allocate the 11 000 enterprises over the different strata, meaning that the allocation is inversely proportional to the variance of the target-variable in the relevant strata.

NACE Rev 1.1: The pop/sample for NACE Rev 2 was used as a base. For those groups that were included in the 1.1 version but that are no longer part of the survey domain acc Rev 2, the pop/sample was complemented. The same method as described for Rev 2 was used for these specific groups.

A system to ‘spread’ the administrative burden for enterprises is used to avoid - if possible - that certain enterprises receive a lot of questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period e.g. the SBS survey, is minimized.

Reference period: Qualitative questions (yes/no-questions or tick-box questions): end of 2008.
Quantitative questions: calendar-year 2008.

Collection method:

The questionnaires are sent out by mail (self-administered mail survey).
It is a voluntary and stand alone survey.

Population covered:

NACE Rev 1.1: sections D, F, G, I, K; groups 55.1, 55.2, 92.1, 92.2; classes 65.12, 65.22, 66.01 and 66.03. Optional classes: section E, 55.3-55.5, 92.3-92.7, 93, 67.12, 67.13, 67.2. Division 22

NACE Rev 2: Sections CDEFGHIJLN, divisions 69-74, groups 65.1, 65.2, classes 64.19, 64.92, 66.12, 66.19

Enterprises with 10 or more employed persons.

The results refer to the whole country.

Population size: 60.963 enterprises

Sample size: 10.146

Overall response rate: 71%

Main methodological differences compared to previous survey(s):

See also Summary methodology 4. – Footnotes

Country: Netherlands	Year: 2008
Title: ICT-gebruik bedrijven 2007
Organisation running the survey: Statistics Netherlands
Survey period: 7^th March 2008/1^st Sept 2008 (sending out/receiving back the questionnaires.)	Sampling and statistical methodology: The population is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date i.c 1-12-2007. Stratification: The target-variables (of year t-1) used to allocate the sample were: - the number of enterprises receiving orders online (a qualitative variable) - the number of fte’s spent on developing own account software (a quantitative variable). The population/sample was divided into 48 NACE-aggregates and 10 groups of size-classes resulting in 480 cells/strata. Ca. 11 000 enterprises were allocated in a way that on a national level the relative confidence-intervals for the target-variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample. In principle the Neyman-allocation was used to allocate the 11 000 enterprises over the different strata, meaning that the allocation is inversely proportional to the variance of the target-variable in the relevant strata. A rotation-fraction of .5 was used, meaning that 50 percent of the sample - if possible – exists of enterprises which also in the year t-1 were included in the sample. A system to ‘spread’ the administrative burden for enterprises is used to avoid - if possible - that certain enterprises receive a lot of questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period e.g. the structural business statistics survey, is minimized.
Reference period: Qualitative questions (yes/no-questions or tick-box questions): end of 2007. Quantitative questions: calendar-year 2007.
Collection method: The questionnaires are sent out by mail. It is a voluntary and stand alone survey.
Population covered: - The mandatory NACE-aggregates are included in the survey (DA-DE, DF-DH, DI-DJ, DK-DN, 22, 40, 41, 45, 50, 51, 52, 55.1-55.2, 60-63, 64, 72, 70-74 (excl. 72), 92.1-92.2). - The optional NACE-aggregates are included in the survey (55.3-55.5, 92.3-92.7, 93).. - In the financial sector the NACE-aggregates 65.12+65.22, 66.01+66.03 are included in the survey Enterprises with 10 or more employed persons. The results refer to the whole country.
Population size: 64.210 enterprises
Sample size: 7.276
Overall response rate: 64%
Main methodological differences compared to previous survey(s): Reference period: end of 2007 (instead of Jan 2008) See also Summary methodology 4. – Footnotes

Country: Netherlands	Year: 2007
Title: ICT-gebruik bedrijven 2006
Organisation running the survey: Statistics Netherlands
Survey period: 1^st March 2007/1st June 2007: sending out/receiving back the questionnaires.	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date i.e 1-12-2006. Stratification: The target-variables (of year t-1) used to allocate the sample are: - the number of enterprises receiving orders online (a qualitative variable); - the number of fte’s spend on developing own account software (a quantitative variable). The population/sample was divided into 48 NACE-aggregates and 10 groups of size-classes resulting in 480 cells/strata. Ca. 12 000 enterprises were allocated in a way that on a national level the relative confidence-intervals for the target-variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample. By choosing a maximum number of 11 000 enterprises to be allocated a response percentage of 50 percent is anticipated. In principle the Neyman-allocation was used to allocate the 11 000 enterprises over the different strata, meaning that the allocation is inversely proportional to the variance of the target-variable in the relevant strata. A rotation-fraction of .5 was used, meaning that 50 percent of the sample - if possible – exists of enterprises which also in the year t-1 were included in the sample. A system to ‘spread’ the administrative burden for enterprises is used to avoid that certain enterprises receive a lot of questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period e.g. the SBS survey, is minimized.
Reference period: Qualitative questions (yes/no-questions or tick-box questions): december 2006. Quantitative questions: calendar-year 2006.
Collection method: The questionnaires are sent out by mail. It is a voluntary and stand alone survey.
Population covered: - The mandatory NACE-aggregates are included in the survey (DA-DE, DF-DH, DI-DJ, DK-DN, 22, 40, 41, 45, 50, 51, 52, 55.1-55.2, 60-63, 64, 72, 70-74 (excl. 72), 92.1-92.2). - The optional NACE-aggregates are included in the survey (55.3-55.5, 92.3-92.7, 93).. - In the financial sector the NACE-aggregates 65.12+65.22, 66.01+66.03 are included in the survey Enterprises with 10 or more employed persons. The results refer to the whole country.
Population size: 61311 enterprises
Sample size: 11322
Overall response rate:
Main methodological differences compared to previous survey(s): See also Summary methodology 4. – Footnotes

Country: Netherlands	Year: 2006
Title: ICT-gebruik bedrijven 2005
Organisation running the survey: Statistics Netherlands
Survey period: 9 February 2006/15 June 2006: sending out/receiving back the questionnaires, general survey. 24 March 2006: sending out the questionnaires, financial sector.	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date i.e 1-12-2005. Stratification: The target-variables (of year t-1) used to allocate the sample are: - the number of enterprises receiving orders online (a qualitative variable); - the number of fte’s spend on developing own account software (a quantitative variable). The population/sample was divided into 48 NACE-aggregates and 10 groups of size-classes resulting in 480 cells/strata. Ca. 12 000 enterprises were allocated in a way that on a national level the relative confidence-intervals for the target-variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample. By choosing a maximum number of 12 000 enterprises to be allocated a response percentage of 50 percent is anticipated. In principle the Neyman-allocation was used to allocate the 12 000 enterprises over the different strata, meaning that the allocation is inversely proportional to the variance of the target-variable in the relevant strata. A rotation-fraction of .5 was used, meaning that 50 percent of the sample - if possible – exists of enterprises which also in the year t-1 were included in the sample. A system to ‘spread’ the administrative burden for enterprises is used to avoid - if possible - that certain enterprises receive a lot of questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period e.g. the structural business statistics survey, is minimized.
Reference period: Qualitative questions (yes/no-questions or tick-box questions): end of 2005. Quantitative questions: calendar-year 2006.
Collection method: The questionnaires are sent out by mail. It is a voluntary and stand alone survey.
Population covered: - The mandatory NACE-aggregates are included in the survey (DA-DE, DF-DH, DI-DJ, DK-DN, 22, 40, 41, 45, 50, 51, 52, 55.1-55.2, 60-63, 64, 72, 70-74 (excl. 72), 92.1-92.2). - The optional NACE-aggregates are included in the survey (55.3-55.5, 92.3-92.7, 93).. - In the financial sector the NACE-aggregates 65.12+65.22, 66.01+66.03 are included in the survey Enterprises with 10 or more employed persons.
Population size: 59 925 enterprises
Sample size: 9 231
Overall response rate: 67%
Main methodological differences compared to previous survey(s): See also Summary methodology 4. – Footnotes

Country: Netherlands	Year: 2005
Title: ICT-gebruik bedrijven 2004 / ICT-gebruik financiële sector 2004
Organisation running the survey: Statistics Netherlands
Survey period: February 2005: sending out the questionnaires, general survey. April 2005: sending out the questionnaires, financial sector.	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date i.e 1-12-2004. Stratification: The target-variables (of year t-1) used to allocate the sample are: - the number of enterprises receiving orders online (a qualitative variable); - the number of fte’s spend on developing own account software (a quantitative variable). The population/sample was divided into 56 NACE-aggregates and 7 groups of size-classes resulting in 392 cells/strata. Ca. 12 000 enterprises were allocated in a way that on a national level the relative confidence-intervals for the target-variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample. By choosing a maximum number of 12 000 enterprises to be allocated a response percentage of 50 percent is anticipated. In principle the Neyman-allocation was used to allocate the 12 000 enterprises over the different strata, meaning that the allocation is inversely proportional to the variance of the target-variable in the relevant strata. A rotation-fraction of .5 was used, meaning that 50 percent of the sample - if possible – exists of enterprises which also in the year t-1 were included in the sample. A system to ‘spread’ the administrative burden for enterprises is used to avoid - if possible - that certain enterprises receive a lot of questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period e.g. the structural business statistics survey, is minimized.
Reference period: Qualitative questions (yes/no-questions or tick-box questions): end of 2004. Quantitative questions: calendar-year 2004 (except when specified differently).
Collection method: The questionnaires are sent out by mail. It is a voluntary survey.
Population covered: - The mandatory NACE-aggregates are included in the survey (DA-DE, DF-DH, DI-DJ, DK-DN, 45, 50, 51, 52, 55.1-55.2, 60-63, 64, 72, 70-74 (excl. 72), 92.1-92.2). - The optional NACE-aggregates are included in the survey (E, 55.3-55.5, 92.3-92.7, 93). - For national purposes the NACE-aggregates N and 90 are also included in the survey. - In the financial sector the NACE-aggregates 65.12+65.22, 66.01+66.03 and 67.12+67.13+67.2 are included in the survey Enterprises with 10 or more employed persons.
Population size: 53480 enterprises
Sample size: 8339
Overall response rate: 71%
Main methodological differences compared to previous survey(s): See also Summary methodology 4. – Footnotes

Country: Netherlands	Year: 2004
Title: ICT-gebruik bedrijven 2003
Organisation running the survey: Statistics Netherlands
Survey period: 22^th of April 2004: sending out the questionnaires. 28^th of May 2004: first written reminder.	Sampling and statistical methodology: The population described in the ICT-survey is drawn from the same business-register as the survey for the Structural Business Statistics and at the same reference date i.c 1-12-2003. Stratification: The target-variables (of year t-1) used to allocate the sample are: - the number of enterprises receiving orders online (a qualitative variable); - the number of fte’s spend on developing own account software (a quantitative variable). The population/sample was divided into 56 NACE-aggregates and 7 groups of size-classes resulting in 392 cells/strata. Ca. 12 000 enterprises were allocated in a way that on a national level the relative confidence-intervals for the target-variables were as small as possible. Enterprises with 250 or more employed persons were integrally included in the sample. By choosing a maximum number of 12 000 enterprises to be allocated a response percentage of 50 percent is anticipated. In principle the Neyman-allocation was used to allocate the 12 000 enterprises over the different strata, meaning that the allocation is inversely proportional to the variance of the target-variable in the relevant strata. A rotation-fraction of .5 was used, meaning that 50 percent of the sample - if possible – exists of enterprises which also in the year t-1 were included in the sample. A system to ‘spread’ the administrative burden for enterprises is used to avoid - if possible - that certain enterprises receive a lot of questionnaires in year t and others none or just a few. So, the overlap with other surveys in the same period e.g. the structural business statistics survey, is minimized.
Reference period: Qualitative questions (yes/no-questions or tick-box questions): end of 2003. Quantitative questions: calendar-year 2003 (except when specified differently).
Collection method: The questionnaires are sent out by mail. It is a voluntary survey.
Population covered: - The mandatory NACE-aggregates are included in the survey (DA-DE, DF-DH, DI-DJ, DK-DN, 45, 50, 51, 52, 55.1-55.2, 60-63, 64, 72, 70-74 (excl. 72), 92.1-92.2). - The optional NACE-aggregates are included in the survey (E, 55.3-55.5, 92.3-92.7, 93). - For national purposes the NACE-aggregates N and 90 are also included in the survey. Enterprises with 10 or more employed persons.
Population size: 53829 enterprises
Sample size: 8598
Overall response rate: 68%
Main methodological differences compared to previous survey(s): - Questions on ICT-expenditures were skipped. - Enterprises with 5-9 employed persons are no longer included in the survey. - Sales and purchases are now split between Internet and non-internet-networks (as Eurostat does). In the past we asked only sales/purchases via all electronic networks. Somehow this change has lead to a decline in the number of enterprises selling/purchasing online. See also Summary methodology 4. – Nature of the basic data

Country: Netherlands	Year: 2003
Title: ICT-survey 2002-2004, enterprises (ICT-gebruik bedrijven 2002-2004)
Organisation running the survey: Statistics Netherlands (Centraal Bureau voor de Statistiek)
Survey period: April - May 2003	Stratification Stratification variables: economic activity (NACE), employment size classes (5-9, 10-49, 50-249, 250+).
Reference period: Jan 2002 - Jan 2003
Collection method: Postal survey
Population covered: NACE sections: A+B, C, D, E, F, G, H, I, J, K, N, O plus group 80.4, enterprises with 5+ employees.
Population size: National survey: 138 164 enterprises Eurostat part - 60 543 enterprises
Sample size: National survey - sample size:15 369 enterprises, sample fraction: 7% Eurostat part - sample size: 10 124 enterprises, sample fraction: 10%
Overall response rate: 62%
Deviations from Eurostat model: No distinction is made between Internet and other computer-mediated networks.

Country: Netherlands	Year: 2002
Title: ICT-survey 2001-2003, enterprises (Automatiseringsenquête 2001-2003, particuliere sector)
Organisation running the survey: Statistics Netherlands (Centraal Bureau voor de Statistiek)
Survey period: May - June 2002	Stratification Stratification variables: economic activity (NACE), employment size classes (5-9, 10-49, 50-199, 200+).
Reference period: Jan 2001 - Jan 2002
Collection method: Postal survey
Population covered: NACE sections A+B, C, D, E, F, G, H, I, J, K, N, O and group 80.4, enterprises with 5+ employees.
Population size: National survey - 108 682 enterprises Eurostat part - 45 273 enterprises
Sample size: National survey - sample size: 13 593 enterprises, sample fraction: 6% Eurostat part - sample size: 8 168 enterprises, sample fraction: 9%
Overall response rate: 49% for Eurostat part, 51% for national survey
Deviations from Eurostat model: No distinction is made between Internet and other computer-mediated networks.