| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
1.3%
|
| -8 | Refusal (spontaneous) | 49 |
9%
|
| 1 | Yes | 53 |
9.8%
|
| 2 | No | 433 |
79.9%
|
| Sysmiss | 8834 |