| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 63 |
4.7%
|
| -8 | Refusal (spontaneous) | 10 |
0.7%
|
| 1 | Yes | 670 |
50.2%
|
| 2 | No | 592 |
44.3%
|
| Sysmiss | 2 |