| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.4%
|
| 1 | Yes, fully | 491 |
97.8%
|
| 2 | Yes, partially | 8 |
1.6%
|
| 3 | No | 1 |
0.2%
|