| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 18 |
1.8%
|
| 1 | Yes, fully | 498 |
50.9%
|
| 2 | Yes, partially | 122 |
12.5%
|
| 3 | No | 341 |
34.8%
|