What does the survey comprise?
This survey provides insight into the population size and composition of employees from abroad who are registered as a resident with a Dutch municipality as well as non-resident employees from abroad. Figures are broken down by age, gender, type of contract and hourly wage class.
The statistics are compiled on an annual as well as a quarterly basis.
Employees from abroad aged 18 to 74 years. A distinction is made between employees who are registered as a resident and those not registered as a resident in the Personal Records Database (BRP; formerly known as the GBA). All resident employees were at least 18 years old when they immigrated to the Netherlands. Likewise, the non-resident employees were at least 18 years old at the start of their stay in the Netherlands.
For this survey, the Social Statistics Database (SSB) is consulted. This data file contains information about both people who are resident in the Netherlands and those who are not resident but who do have a fiscal relationship with the Netherlands. Hence, the data in the SSB refer to people who have a job in the Netherlands; people receiving welfare or pension from the Netherlands; or people who are studying in the Netherlands.
For the first group of interest, i.e. those who are resident in the Netherlands, the demographic variables are available in the SSB from the population register. These variables include, for example, gender, date of birth, country of birth and nationality of all persons who are or were recorded in the registered population from 1995 onward. Aside from the population register, the SSB receives abundant and comprehensive information about employees from such sources as the Policy Record Administration of the Employee Insurance Agency (UWV, responsible for the implementation of social insurance and benefits) as well as wage tax data from the Tax and Customs Administration (Belastingdienst). The demographic data on the second group of the survey population, i.e. the foreign employees who are not registered as residents, are based on these data. For the entire target population, the job data is derived from the Policy Record Administration.
Starting year of survey
The data are available from 2010 onwards.
Every year, the final figures over the previous year are published in the last quarter.
How is the survey conducted?
Method of observation
Data are provided electronically by municipalities, the UWV, and the Tax and Customs Administration amongst other sources. See also the following methodology descriptions:
- Brief suvery description GBA (NL)
- Brief survey description SSB (NL)
Municipalities, Employee Insurance Agency (UWV), Tax and Customs Administration.
Checking and correction methods
All data are checked for errors and inconsistencies on the basis of pre-defined rules and criteria. Missing values are imputed in the case of omissions.
Quality of the produced results
The information received by Statistics Netherlands might not always be complete. For such cases, Statistics Netherlands calculates estimates to cope with missing values.
The data are suitable for successive assessments.
Completeness, internal consistency, and plausibility of the statistics are verified.