| Value | Category |
|---|---|
| 1 | managers, business owners, entrepreneurs |
| 2 | intellectual employments: teacher, physician |
| 3 | technicians or foremen: nurses, primary school teachers |
| 4 | clerks: secretary, librarian, cashier |
| 5 | workers in services and commerce |
| 6 | qualified farmers or workers |
| 7 | craftsmen and maintenance mechanics |
| 8 | skilled workers |
| 9 | unskilled workers in non-agricultural sectors |
| 10 | daily workers/black market workers in agriculture |
| 11 | daily workers/black market workers in non-agriculture |
| 12 | military officer |
| Sysmiss |