| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 25 |
2.6%
|
| 1 | Yes, fully | 797 |
81.4%
|
| 2 | Yes, partially | 70 |
7.2%
|
| 3 | No | 87 |
8.9%
|