| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
1.9%
|
| 1 | Yes, fully | 91 |
25.3%
|
| 2 | Yes, partially | 23 |
6.4%
|
| 3 | No | 239 |
66.4%
|