| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.2%
|
| 1 | Yes, fully | 457 |
96.4%
|
| 2 | Yes, partially | 13 |
2.7%
|
| 3 | No | 3 |
0.6%
|