| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 88 |
8.8%
|
| 1 | Yes, fully | 479 |
47.8%
|
| 2 | Yes, partially | 183 |
18.3%
|
| 3 | No | 252 |
25.1%
|