At the beginning of 2011, the Labour Force Survey introduced the Classification of Occupations 2010 and discontinued using the Classification of Occupation 1987, on the basis of which socio-economic groups have so far been formed.
Because of the change, data according to the socio-economic group in the Labour Force Survey publications and database services are not comparable with the years prior to 2011.
Based on a report, it can be estimated that the main category of the socio-economic group changes for around five per cent of employees: the category of upper-level employees diminishes a little, that of lower-level employees remains almost unchanged and that of manual workers grows to some degree.
The Classification of Socio-economic Groups is described in detail on Statistics Finland's pages on socio-economic groups and the new Classification of Occupations on Statistics Finland 's pages on the Classification of Occupations 2010.
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Last updated 9.3.2012