| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
2%
|
| -8 | Refusal (spontaneous) | 9 |
18.4%
|
| 1 | Yes | 20 |
40.8%
|
| 2 | No | 19 |
38.8%
|