| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 87 |
14.5%
|
| 1 | Yes, fully | 266 |
44.5%
|
| 2 | Yes, partially | 75 |
12.5%
|
| 3 | No | 170 |
28.4%
|