| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -8 | Refusal (spontaneous) | 1 |
1.9%
|
| 1 | Yes | 14 |
26.9%
|
| 2 | No | 37 |
71.2%
|
| Sysmiss | 560 |