| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
1.8%
|
| -8 | Refusal (spontaneous) | 8 |
4.8%
|
| 1 | Yes | 55 |
32.7%
|
| 2 | No | 102 |
60.7%
|
| Sysmiss | 851 |