| Value | Category |
|---|---|
| -5 | Missing; Not asked by the interviewer |
| -4 | Not asked |
| -3 | Not applicable |
| -2 | No answer |
| -1 | Don't know |
| 1 | Government or public institution |
| 2 | Private business or industry |
| 3 | Private non-profit organization |
| 4 | Self-employed (cs), informal sectors (China)... |