| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
0.4%
|
| 1 | Yes, fully | 812 |
88.4%
|
| 2 | Yes, partially | 84 |
9.1%
|
| 3 | No | 19 |
2.1%
|