| Value | Category | Cases | |
|---|---|---|---|
| 1 | Have done | 31 |
3.1%
|
| 2 | Not done | 972 |
96.9%
|
| -5 | Missing; Not asked by the interviewer | 0 | |
| -4 | Not asked | 0 | |
| -3 | Not applicable | 0 | |
| -2 | No answer | 0 | |
| -1 | Don´t know | 0 |