| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 17 |
12.1%
|
| -8 | Refusal (spontaneous) | 12 |
8.6%
|
| 1 | Yes | 56 |
40%
|
| 2 | No | 55 |
39.3%
|
| Sysmiss | 1197 |