| Value | Category |
|---|---|
| 00 | Military occupations |
| 01 | Directors and managers |
| 02 | Technicians and scientific professionals and intellectuals |
| 03 | Technicians and support professionals |
| 04 | Accountancy, administrative and other office employees |
| 05 | Workers of catering services, personal, protection and commerce vendors |
| 06 | Skilled workers in agriculture, livestock, forestry and fishing |
| 07 | Craftsmen and skilled workers of the manufacturing industries and construction (except operators of installations and machinery) |
| 08 | Operators of installations and machinery, and assemblers |
| 09 | Elementary occupations |
| 99 | NIU (not in universe) |