| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -8 | Refusal (spontaneous) | 1 |
1.1%
|
| 1 | Yes | 37 |
41.1%
|
| 2 | No | 52 |
57.8%
|
| Sysmiss | 160 |