| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
4.3%
|
| -8 | Refusal (spontaneous) | 12 |
26.1%
|
| 1 | Yes | 17 |
37%
|
| 2 | No | 15 |
32.6%
|