| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.7%
|
| -8 | Refusal (spontaneous) | 1 |
0.7%
|
| 1 | Yes | 15 |
11.1%
|
| 2 | No | 118 |
87.4%
|