| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
2.8%
|
| 1 | Yes, fully | 307 |
95.9%
|
| 2 | Yes, partially | 2 |
0.6%
|
| 3 | No | 2 |
0.6%
|