| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
1.7%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| 1 | Yes | 224 |
43.5%
|
| 2 | No | 282 |
54.8%
|
| Sysmiss | 724 |