| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
2.6%
|
| -7 | Doesn't apply (spontaneous) | 6 |
4%
|
| 1 | Yes | 79 |
52.3%
|
| 2 | No | 62 |
41.1%
|