| Value | Category | 
|---|---|
| 00 | Armed forces | 
| 01 | Managers | 
| 02 | Professionals | 
| 03 | Technicians and associate professionals | 
| 04 | Clerical support workers | 
| 05 | Service and sales workers | 
| 06 | Skilled agriculture, forestry and fishery workers | 
| 07 | Craft and related workers | 
| 08 | Plant and machine operators, and assemblers | 
| 09 | Elementary occupations | 
| 99 | NIU (not in universe) |