| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
1.1%
|
| -8 | Refusal (spontaneous) | 1 |
0.1%
|
| 1 | Yes | 277 |
36.4%
|
| 2 | No | 474 |
62.4%
|