| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.2%
|
| 1 | Yes, fully | 290 |
47.2%
|
| 2 | Yes, partially | 113 |
18.4%
|
| 3 | No | 211 |
34.3%
|