| Value | Category | Cases | |
|---|---|---|---|
| 1 | Have done | 7 |
70%
|
| 2 | Not done | 3 |
30%
|
| -5 | Missing; Not asked by the interviewer | 0 | |
| -4 | Not asked | 0 | |
| -3 | Not applicable | 1487 | |
| -2 | No answer | 3 | |
| -1 | Don´t know | 0 |