Statistical processing

Source data

The statistics are based on annual reports of employee organisations. The Central Organizations transmit the data for their member organisations. Employee/Trade union organisations that are not affiliated with a main organisation submit their data independently to Statistics Denmark.

Frequency of data collection

Reporting to the statistics is on an annual basis.

Data collection

Approximately one month after the reference date (31 December) an email is sent to reporting units with response time approx. two months after the reference date. The responding units are requested to report the number of employee members who are attached to the labour market, i.e. exclusive members who are students, self-employed, fulltime-early retirees or pensioners and the number of all employee members. The membership must be divided by gender. As of the reporting for 31 December 2023, the reporting organisations have also been asked to provide the total number of members, including those without labour market affiliation. At present, these totals per trade union organisation are used solely for validation purposes, as only the number of members with labour market affiliation is published in the Danish press release and in the StatBank. The responding units are the Central Organisations (FH, AC and Managers and Executives) and employees' organisations outside the Central Organizations.

Data validation

The reports are validated by comparing the figures with the previous reference period. If the level has changed considerably contact is made to the respondent. As of the reporting for 31 December 2023, the reporting organisations have also been asked to provide the total number of members. During the validation process errors have been corrected with respect to not including members who are not attached to the labour market, i.e. trainees, retirees and early retirees. There have also been examples of erroneous reporting self-employed. These corrections can effect the figures concerning the previous years.

Data compilation

Immediately after the reporting deadline a reminder is sent to non-respondents. If the transmission does not occur before the statistics is published data can be imputed on basis of data from the previous year. In reason years it has not been necessary to make imputations.

Adjustment

No corrections of data are made beyond what has already been described regarding data validation and data processing.