The compilation of statistics is regulated by the Statistics Act (PDF). Data collected in other contexts must be primarily exploited for statistics. The vast majority of data are drawn from diverse registers. Only such data that cannot be obtained from elsewhere are collected from data suppliers. State authorities have a statutory obligation to supply data from the information in their possession. Enterprises, municipal organisations and non-profit institutions are obliged to supply data on matters separately prescribed in law.
Basic statistical data are confidential. Permission to use data can be granted for scientific studies and statistical surveys by means of the user licence procedure. Permission to use data can be given so that data enabling direct identification of the statistical unit have been removed. Exceptions to secrecy are public data in the Business Register and public data describing the activity of central and local government authorities.