| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 25 |
1.8%
|
| 1 | Yes, fully | 834 |
58.9%
|
| 2 | Yes, partially | 81 |
5.7%
|
| 3 | No | 476 |
33.6%
|