| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.3%
|
| 1 | Yes, fully | 22 |
7.1%
|
| 2 | Yes, partially | 47 |
15.1%
|
| 3 | No | 241 |
77.5%
|