This is an index measuring development in wage and salary earners’ earnings for regular working hours. The base year of the index is 2010=100. The index is not influenced by the effects of overtime work or one-off bonuses or remuneration items. The basic data cover approximately two-thirds of the full-time wage and salary earners in Finland. Wage and salary earner groups by industry are weighted together in the index with fixed wage sum weights. By-products from the index are data on the average earnings of wage and salary earners according to different classifications. The data relating to individual units in the basic data are confidential.