| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
0.3%
|
| 1 | Yes, fully | 858 |
86.9%
|
| 2 | Yes, partially | 75 |
7.6%
|
| 3 | No | 51 |
5.2%
|