| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
2.1%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| 1 | Yes | 100 |
41.7%
|
| 2 | No | 135 |
56.3%
|