| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 31 |
11.8%
|
| -8 | Refusal (spontaneous) | 8 |
3%
|
| -7 | Does not apply | 1 |
0.4%
|
| 1 | Yes | 45 |
17.1%
|
| 2 | No | 178 |
67.7%
|
| Sysmiss | 1074 |