| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.1%
|
| 1 | Yes, fully | 870 |
57.3%
|
| 2 | Yes, partially | 241 |
15.9%
|
| 3 | No | 405 |
26.7%
|