www.stat.fi/til/tyti/2020/13/tyti_2020_13_2021-03-04_kat_003_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 ...
03/04/2021