| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
0.5%
|
| 1 | Yes, fully | 467 |
77.8%
|
| 2 | Yes, partially | 59 |
9.8%
|
| 3 | No | 71 |
11.8%
|