Statistics Netherlands

SES/SAR

P.O. Box 24500
2490 HA The Hague

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Not available.
New concept added with the migration to SIMS 2.0.
Information (content) will be available after the next collection.

Not available.
New concept added with the migration to SIMS 2.0.
Information (content) will be available after the next collection.

Not available.
New concept added with the migration to SIMS 2.0.
Information (content) will be available after the next collection.

Not available.
New concept added with the migration to SIMS 2.0.
Information (content) will be available after the next collection.

Not available.
New concept added with the migration to SIMS 2.0.
Information (content) will be available after the next collection.

Not available.
New concept added with the migration to SIMS 2.0.
Information (content) will be available after the next collection.

Not available.
New concept added with the migration to SIMS 2.0.
Information (content) will be available after the next collection.

Not available.
New concept added with the migration to SIMS 2.0.
Information (content) will be available after the next collection.

For the 2010 SES the following sources were used:

1. Annual Survey on Employment and Earnings (ASEE 2014);
2. Population Register (PR 2014; in Dutch: Gemeentelijke Basisadministratie persoonsgegevens, GBA);
3. Labour Force Survey (LFS 2013, 2014 and 2015; in Dutch: Enquête beroepsbevolking, EBB).

1. Annual Survey on Employment and Earnings (ASEE 2014)

Data of ASEE have formed the core for the SES. The ASEE contains information about earnings and working hours of all individual employees as well as some characteristics of their jobs. In addition a number of variables (economic activity, geographical location, size of the enterprise) were taken from Statistics Netherlands’ General Business Register (GBR; in Dutch: Algemeen Bedrijfsregister, ABR). For the GBR Statistics Netherlands (SN) receives monthly information from three registers, which are kept by the Chambers of Commerce and the Social Security Board. This information relates to:

• newly registered legal units;
• existing legal units and local units removed from registration;
• changes in address;
• changes in principle kind of activity of units;
• changes in persons employed by units.

2. Population Register (PR 2014; in Dutch: Gemeentelijke Basisadministratie persoonsgegevens, GBA)

The Population Register (PR) contains demographic information on every inhabitant of the Netherlands. The PR is built from the municipal population registers, which are of outstanding quality nowadays. Municipalities have a major incentive to record all their inhabitants because the allocation of central government funds is mainly based on population size.

The Population Register (PR) is used for: 

• the variables age and sex;
• grossing up LFS (2013 + 2014 + 2015) to the PR-population October 2014;
• and micro-linkage: ASEE-PR,  LFS-PR  and  ASEE(PR)-LFS(PR).

3. Labour Force Survey (LFS 2013, 2014 and 2015; in Dutch: Enquête beroepsbevolking, EBB).

The Labour Force Survey (LFS) is a household sample survey. It is needed for information that is not available in registers. It contains variables of interest for the SES such as occupation and educational attainment levels. The LFS is a survey on private households, in which the survey population is restricted to persons aged 15 years and older. It is a continuous survey, meaning that sampling and surveying of persons is spread throughout the year. The sample size is actually quite small; yearly some 90 thousand persons are sampled, which is approximately 0.7 percent of the total population.

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For grossing up the SES data SN made use of data from the new ASEE.

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Not available.
New concept added with the migration to SIMS 2.0.
Information (content) will be available after the next collection.

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Coefficients of variation (CV), standard deviation (s, square root of the variance) and mean are listed in tables 1 and 2. In table 1 for variable B42 ‘Gross earnings in the reference month’ and in table 2 for variable B43 ‘Average gross hourly earnings in the reference month’. The key-variables, B42 and B43, are broken down to:

- full-time (separately for men and women) and part-time employees,

- economic activity (NACE Rev.2),

- occupation (ISCO-08 at the 1-digit level),

- age band,

- geographical location (NUTS level 1),

- highest level of education (ISCED 2011),

- size of enterprise.

Table 1. Gross monthly earnings

Table 2. Average gross hourly earnings

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The 2014 SES of the Netherlands is not based on a single questionnaire but on a combination of three sources: the population register (PR 2014; in Dutch: De Basisregistratie Personen (BRP)) the Labour Force Survey (LFS; in Dutch: Enquête Beroepsbevolking, EBB) and a Annual Survey on Employment and Earnings (ASEE)

The ASEE 2014 is based on, a combination of, the ‘Register of persons insured under employee insurance schemes’ (in Dutch: Polisadministratie) and the ‘Tax register of earnings’.

This register contains information about earnings and working hours of all individual employees, working or living in the Netherlands, as well as some characteristics of their jobs .

There is always a certain time lag between changes and the updating of the information in a register. The conclusion can be drawn that because of the way of updating (monthly) and the extra work that was done to overcome certain "shortcomings" of misclassification, under-coverage and over-coverage do not strongly influence the SES results.

Population 2014 SES of the Netherlands:

• jobs of employees, aged 14 years and over

• who have an employment contract in reference month (October)

• and received remuneration during the reference month

• all size classes are covered, included enterprises with fewer than 10 employees (except enterprises without employees)

• and in the areas of economic activity defined by section B-S of NACE (Rev.2).

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For the 2014 SES the following sources were used:

1. Annual Survey on Employment and Earnings (ASEE 2014);

2. Population Register (PR 2014; in Dutch: De Basisregistratie Personen (BRP));

3. Labour Force Survey (LFS 2013, 2014 and 2015; in Dutch: Enquête beroepsbevolking, EBB).

Data of ASEE have formed the core for the SES. The ASEE contains information about earnings and working hours of all individual employees as well as some characteristics of their jobs. In addition a number of variables (economic activity, geographical location, size of the enterprise) were taken from Statistics Netherlands’ General Business Register (GBR; in Dutch: Algemeen Bedrijfsregister, ABR). For the GBR Statistics Netherlands (SN) receives monthly information from three registers, which are kept by the Chambers of Commerce and the Social Security Board. This information relates to:
- newly registered legal units;
- existing legal units and local units removed from registration;
- changes in address;
- changes in principle kind of activity of units;
To compensate for "shortcomings" in the administrative registers the GBR sends questionnaires to all units that are newly registered or for which the activity code has been changed by the registers. On the basis of this information the legal units can be turned into meaningful statistical units.

The Population Register (PR) contains demographic information on every inhabitant of the Netherlands. The PR is built from the municipal population registers, which are of outstanding quality nowadays. Municipalities have a major incentive to record all their inhabitants because the allocation of central government funds is mainly based on population size. Even though the PR seeks to optimally record every person in the population, it is by no means perfect (homeless people, illegal residents, people may emigrate and forget to notify the authorities, persons are registered at separate addresses but actually live together).

The Labour Force Survey (LFS) is a household sample survey. It is needed for information that is not available in registers. It contains variables of interest for the SES such as occupation and educational attainment levels. The LFS is a survey on private households, in which the survey population is restricted to persons aged 15 years and older. It is a continuous survey, meaning that sampling and surveying of persons is spread throughout the year. The sample size is actually quite small, considering the requested level of detail; yearly some 90 thousand persons are sampled, which is approximately 0.7 per cent of the total population. The consequence is that estimations for small subpopulations at a detailed level may be unreliable or even impossible. For this reason three LFS-surveys, 2013, 2014 and 2015, were joined to create more mass for the SES compilation process. In general the above mentioned LFS variables are relatively stable in time, so that it can be assumed that they represent the situation at reference date without much error.

The Population Register (PR) is used for:

- the variables age and sex;

- grossing up LFS (2013 + 2014 + 2015) to the PR-population of October 2014;

- and micro-linkage: ASEE-PR, LFS-PR and ASEE(PR)-LFS(PR).

Most of the present administrative registers are provided with a unique linkage key. BSN-number ( in Dutch: Burgerservicenummer), a personal identifier for every (registered) Dutch inhabitant and those abroad who receive an income from the Netherlands and have to pay tax on it to the Dutch fiscal authorities. Statistics Netherlands recodes the BSN-number for statistical processing into a so-called Record Identification Number (in accordance with regulations of the Dutch Data Protection Authority to protect the privacy of the citizens). A limited amount of BSN-numbers may be registered with incorrect values in the data files, in which case linkage with other files may fail. However, in general, the percentage of matches is close to one hundred per cent.

For grossing up the SES data SN made use of data from the new ASEE.

The ASEE contains information about earnings and working hours of all individual employees, working or living in the Netherlands, as well as some characteristics of their jobs. The ASEE is based on, a combination of, the ‘Register of persons insured under employee insurance schemes’ (in Dutch: Polisadministratie) and the ‘Tax register of earnings’.

The Population Register (PR) contains demographic information on every inhabitant of the Netherlands. The PR is built from the municipal population registers. Municipalities have a major incentive to record all their inhabitants because the allocation of central government funds is mainly based on population size.

The Labour Force Survey (LFS) is a survey on private households, in which the survey population is restricted to persons aged 15 years and older. It is a continuous survey, meaning that sampling and surveying of persons is spread throughout the year.

In case of 2014 SES non-response errors is not an issue. The non-response is already taken to account at the sources. The LFS we use is corrected for non-response.

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Most of the present administrative registers are provided with a unique linkage key. It is the so-called social security and fiscal number (SoFi-number or BSN-number; in Dutch: Burgerservicenummer), a personal identifier for every (registered) Dutch inhabitant and those abroad who receive an income from the Netherlands and have to pay tax on it to the Dutch fiscal authorities. Statistics Netherlands recodes the BSN-number for statistical processing into a so-called Record Identification Number (in accordance with regulations of the Dutch Data Protection Authority to protect the privacy of the citizens). A limited amount of BSN-numbers may be registered with incorrect values in the data files, in which case linkage with other files may fail. However, in general, the percentage of matches is close to one hundred percent.

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The SES data used only refer to employees working in October 2014. This implies that the earnings and working hours data of employees who left the enterprise in 2014 were not included in the SES data. All data relate to the year 2014. It was not necessary to make adjustments from fiscal year to calendar year. All economic activities (NACE Rev.2) are covered; except the sections, A and T. All size classes are covered, except enterprises without employees.

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For compiling the 2014 SES figures, Statistics Netherlands used a methodology in which, by using existing sources, it was not necessary to conduct a separate survey.

- The ASEE is updated every month (with mutations).

- The PR is built from the municipal population registers.

- The LFS is a continuous survey, meaning that sampling and surveying of persons is spread throughout the year. Three LFS-surveys, 2013, 2014 and 2015, were joined to create more mass for the SES compilation process.

Up from January 2016 several sources were collected and processed.

The ASEE data used for the SES Regulation refers to reference month October, while the other months of 2014 are used for composing annual figures. This work was time-consuming (many basic data had to undergo further treatments) and the processing of data lasted until April 2016.

In the period from Mai onward, the basic data were processed and a data set with the required SES variables (from ASEE and the other sources, PR and LFS) was gradually built. For this purpose many data had to be linked. In June 2016 the data in the SES data set were provided with weights.

In June 2016 the plausibility checks, which were already started in May 2016, could be finalised.

Thereafter, the data tables for Eurostat were prepared, including confidentiality checks, and on 28 June 2016 the SES data were successfully sent to Eurostat (by Edamis Web Application):

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For compiling the 2014 SES figures, Statistics Netherlands used a methodology in which, by using existing sources, it was not necessary to conduct a separate survey.

- The ASEE is updated every month (with mutations).

- The PR is built from the municipal population registers.

- The LFS is a continuous survey, meaning that sampling and surveying of persons is spread throughout the year. Three LFS-surveys, 2013, 2014 and 2015, were joined to create more mass for the SES compilation process.

Up from January 2016 several sources were collected and processed.

The ASEE data used for the SES Regulation refers to reference month October, while the other months of 2014 are used for composing annual figures. This work was time-consuming (many basic data had to undergo further treatments) and the processing of data lasted until April 2016.

In the period from Mai onward, the basic data were processed and a data set with the required SES variables (from ASEE and the other sources, PR and LFS) was gradually built. For this purpose many data had to be linked. In June 2016 the data in the SES data set were provided with weights.

In June 2016 the plausibility checks, which were already started in May 2016, could be finalised.

Thereafter, the data tables for Eurostat were prepared, including confidentiality checks, and on 28 June 2016 the SES data were successfully sent to Eurostat (by Edamis Web Application):

- SES_EARNINGS_A4 (table A- Reporting Units);

- SES_EARNINGS_A4 (table B- Employees).

Annotations on selected variables:

- B23: for occupation unknown we used code 999.

- B26: a new method, based on time series of earlier Annual Surveys on Employment and Earnings, was used to derive this variable.

- B41: ‘Gross annual earnings’, B421: ‘Earnings related to overtime’, B321: ‘Number of overtime hours’, and several others do not fully comply with the plausibility checks. These variables are derived from the new Register of Jobs and Wages, which also gives information on paid hours en wage payments. Statistics Netherlands judges the information from this source as reliable.

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Statistical units

The General Business Register of SN does not contain information regarding local units. The information about units does not refer to local units, but to enterprises (containing all the employees) at NUTS-1 level.

Populations

All economic activities (NACE Rev.2), except the sections A and T, are included in the SES.

All size classes are covered (except enterprises without employees).

Reference times

All variables refer to 2014, except for occupation and education.

The Labour Force Survey (LFS) is a household sample survey and it is needed for information that is not available in registers, such as occupation and educational attainment levels. The sample size is actually quite small; yearly some 90 thousand persons are sampled, which is approximately 0.5 per cent of the total population. The consequence is that estimations for small subpopulations at a detailed level may be unreliable or even impossible. For this reason three LFS-surveys, 2013, 2014 and 2015, were joined to create more mass for the SES compilation process. In general the above mentioned LFS variables are relatively stable in time, so that it can be assumed that they represent the situation at reference date without much error.

Classifications

There are no differences between the national classifications and the Eurostat classifications.

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Methodology

In the 1995 SES the requisite data were compiled from Survey on Employment and Earnings (SEE 1995), Labour Force Survey (LFS 1994, 1995 and 1996) and the Insured Persons Register (1995).

For the 2002 SES the data were compiled form Survey on Employment and Earnings (SEE 2002) and Labour Force Survey (LFS 2000, 2001 and 2002).

With the 2006 SES we started with a new method, based on a new Register on Jobs and Wages (ASEE). The 2014 SES is based on the ASEE 2014 and the Labour Force Survey (LFS 2013, 2014 and 2015). The ASEE 2014 is based on (combination of) the ‘Register of persons insured under employee insurance schemes’ (in Dutch: Polisadministratie) and the ‘Tax register of earnings’.

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A comparison between the results of 2014 SES and 2014 NA is faced with difficulties because of conceptual differences between both sources. The SES gives information about the number of employees working during October 2014, the National Accounts gives the mean of whole 2014. The NA figures also relate to employees who do not figure on the payroll of enterprises. Because of this, the distribution of the number of employees over the sections differ between SES end NA.

Comparable conceptual differences in wages and salaries between SES and NA results in different outcomes.

Table 3. Comparison between 2014 SES and 2014 NA (National Accounts)

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The SES 2014 will published only by Eurostat, no Dutch version of the SES2014 will be published by Statistics Netherlands.

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At this moment there is no description on the methodology and results of the 2014 SES available.

The used method was published in 2005 in an article ‘Wages by occupation and level of education: Structure of Earnings Survey 2002’ (in Dutch: ‘Loon naar beroep en opleidingsniveau: het Loonstructuuronderzoek 2002’) with main results was published in the: Sociaal-economische trends, 2e kwartaal 2005, page 39-51 ( See: http://www.cbs.nl/NR/rdonlyres/69E7EBEE-75C4-4FCF-9FE8-D59982DE2423/0/2005k2v4p039art.pdf).

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In June 2016 the plausibility checks, which were already started in May 2016, could be finalised.Thereafter, the data tables for Eurostat were prepared, including confidentiality checks, and on 28 June 2016 the SES data were successfully sent to Eurostat

In June 2016 the plausibility checks, which were already started in May 2016, could be finalised.Thereafter, the data tables for Eurostat were prepared, including confidentiality checks, and on 28 June 2016 the SES data were successfully sent to Eurostat

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