International Standard Classification of Occupations for European Union purposes (ISCO-88 (COM))
00 Total
01 Legislators, senior officials and managers
02 Professionals
03 Technicians and associate professionals
04 Clerks
05 Service workers and shop and market sales workers
06 Skilled agricultural and fishery workers
07 Craft and related trades workers
08 Plant and machine operators and assemblers
09 Elementary occupations
0a Armed forces
0b Unknown
International Standard Classification of Education (ISCED 1997)
00 All ISCED 1997 levels
01 Pre-primary education (level 0)
02 Primary education or first stage of basic education (level 1)
03 Lower secondary or second stage of basic education (level 2)
04 Upper secondary education (level 3)
05 Upper secondary education (level 3A), programmes designed to provide direct access to level 5A
06 Upper secondary education (level 3B), programmes designed to provide direct access to level 5B
07 Upper secondary education (level 3C), programmes not designed to lead directly to levels 5A or 5B; they lead directly to labour market, level 4 or other level 3 programmes
09 First and second stage of tertiary education (levels 5 and 6)
0a First stage of tertiary education, programmes that are theoretically based/research preparatory or giving access to professions with high skills requirements (level 5A)
0b First stage of tertiary education, programmes which are practically oriented and occupationally specific (level 5B)
0c Second stage of tertiary education leading to an advanced research qualification (level 6)
Population aged 15-74 by sex, age group, educational attainment level and occupation (ISCO 1988)
methods, notes and classification
Methods 
Variables