| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
5.9%
|
| -8 | Refusal (spontaneous) | 2 |
11.8%
|
| 1 | Yes | 11 |
64.7%
|
| 2 | No | 3 |
17.6%
|
| Sysmiss | 1283 |