| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
3%
|
| -8 | Refusal (spontaneous) | 18 |
18%
|
| 1 | Yes | 19 |
19%
|
| 2 | No | 60 |
60%
|
| Sysmiss | 672 |