| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.7%
|
| 1 | Yes, fully | 21 |
13.9%
|
| 2 | Yes, partially | 8 |
5.3%
|
| 3 | No | 121 |
80.1%
|