| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
7.1%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| -7 | Does not apply (spontaneous) | 0 |
0%
|
| 1 | Yes | 3 |
3.6%
|
| 2 | No | 75 |
89.3%
|
| Sysmiss | 277 |