The Kvens were registered as a separate group in the Norwegian censuses in the period 1845 to 1930. From the 18th century the Kvens started to comprise a significant part of the population in Northern Norway. In 1845 13.3% of the population in Finnmark, and 3.2% in Troms, considered themselves as Kvens. In 1854 the numbers increased to respectively, 19.9% and 7.0%. The peak was in 1875, with respectively 24.2% and 7.7%. The ratios were reduced to respectively 20.2% and 3.7%, in 1890, and 13.8% and 2.0% in 1900 (all numbers from).