| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1.4%
|
| -8 | Refusal (spontaneous) | 1 |
1.4%
|
| 1 | Yes | 33 |
44.6%
|
| 2 | No | 39 |
52.7%
|
| Sysmiss | 176 |