| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 99 |
3.7%
|
| 1 | Yes, fully | 2257 |
83.7%
|
| 2 | Yes, partially | 212 |
7.9%
|
| 3 | No | 129 |
4.8%
|