| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 44 |
3.4%
|
| -8 | Refusal (spontaneous) | 15 |
1.1%
|
| 1 | Yes | 401 |
30.6%
|
| 2 | No | 851 |
64.9%
|
| Sysmiss | 58 |