| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.5%
|
| 1 | Yes, fully | 44 |
12.1%
|
| 2 | Yes, partially | 12 |
3.3%
|
| 3 | No | 306 |
84.1%
|