| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
21.6%
|
| -8 | Refusal (spontaneous) | 3 |
8.1%
|
| -7 | 1 |
2.7%
|
|
| 1 | Yes | 9 |
24.3%
|
| 2 | No | 16 |
43.2%
|
| Sysmiss | 982 |