| Value | Category |
|---|---|
| -99 | Refuse to answer |
| -98 | Difficult to answer/Don't remember |
| -97 | Don't know/No information |
| -9 | Interrupted interview |
| -7 | Legal Skip |
| -3 | Interviewer error |
| 1 | Agriculture |
| 2 | Industry |
| 3 | Construction |
| 4 | Trade and repair |
| 5 | Public Administration |
| 6 | Education/Science |
| 7 | Healthcare |
| 8 | Other |