| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.6%
|
| 1 | Yes, fully | 92 |
25.5%
|
| 2 | Yes, partially | 81 |
22.4%
|
| 3 | No | 186 |
51.5%
|