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.

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Quantity index

The quantity index is a ratio describing relative changes in the quantity of produced goods or services relative to the base period. It is obtained when the change in prices is removed from a value index by dividing the value index by a price index and by multiplying the quotient by one hundred. This is also known as deflation. The quantity index can also be produced direct from quantity data without deflation with a price index. Quantity indices are produced on trade and construction, while volume indices are produced on industry and services.

Statistics using the definition

Validity of the definition

  • Valid until (31 December 2078)

Source organisation

  • Tilastokeskus