| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 12 |
1.6%
|
| -7 | Does not apply (spontaneous) | 41 |
5.3%
|
| 1 | Yes | 261 |
33.8%
|
| 2 | No | 458 |
59.3%
|