| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
2.1%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| 1 | Yes | 88 |
61.5%
|
| 2 | No | 52 |
36.4%
|
| Sysmiss | 217 |