| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 22 |
1.7%
|
| 1 | Yes, fully | 616 |
47.4%
|
| 2 | Yes, partially | 309 |
23.8%
|
| 3 | No | 353 |
27.2%
|