| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
2.9%
|
| -8 | Refusal (spontaneous) | 1 |
1%
|
| 1 | Yes | 38 |
37.3%
|
| 2 | No | 60 |
58.8%
|
| Sysmiss | 479 |