| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 21 |
2.7%
|
| -8 | Refusal (spontaneous) | 20 |
2.6%
|
| 1 | Yes | 291 |
37.7%
|
| 2 | No | 440 |
57%
|