www.stat.fi/til/tyti/2019/13/tyti_2019_13_2020-05-07_kat_007_en.html
... 1 Socio-economic Groups Classification of Socio-economic Groups 1989 Code Heading 3 Upper-level employees with administrative, managerial, professional and related occupations 31 Senior officials and upper ...
05/07/2020