| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
5.3%
|
| -8 | Refusal (spontaneous) | 2 |
3.5%
|
| -7 | Does not apply (spontaneous) | 0 |
0%
|
| 1 | Yes | 2 |
3.5%
|
| 2 | No | 50 |
87.7%
|
| Sysmiss | 303 |