| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 18 |
2.5%
|
| 1 | Yes, fully | 530 |
72.7%
|
| 2 | Yes, partially | 59 |
8.1%
|
| 3 | No | 122 |
16.7%
|