| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1%
|
| 1 | 31 |
32%
|
|
| 2 | 36 |
37.1%
|
|
| 3 | 15 |
15.5%
|
|
| 4 | 13 |
13.4%
|
|
| 10 | 1 |
1%
|