The concepts described on these pages are words and expressions used in statistics with a specific, limited meaning. In everyday speech the word may have a different meaning. In connection with each definition you can find information about which sets of statistics use the concept.

If you are looking for statistical figures, go from the definition to the statistics page.

Original series

An index series from which the effects of factors not related to production have not been removed. Non-productional factors include variations in the number of working days per month and fluctuations in production caused by seasonal variation.



Validity of the definition

  • Valid

Source organisation

  • Tilastokeskus

Related concepts


Jaa