| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 10 |
4.7%
|
| -8 | Refusal (spontaneous) | 18 |
8.5%
|
| -7 | Does not apply | 4 |
1.9%
|
| 1 | Yes | 55 |
26.1%
|
| 2 | No | 124 |
58.8%
|
| Sysmiss | 885 |