| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
3.3%
|
| -7 | Doesn't apply (spontaneous) | 8 |
5.3%
|
| 1 | Yes | 81 |
53.6%
|
| 2 | No | 57 |
37.7%
|