| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
1.2%
|
| 1 | Yes, fully | 149 |
23.1%
|
| 2 | Yes, partially | 125 |
19.4%
|
| 3 | No | 363 |
56.3%
|