| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | 36 |
30%
|
|
| 2 | 34 |
28.3%
|
|
| 3 | 20 |
16.7%
|
|
| 4 | 28 |
23.3%
|
|
| 5 | 1 |
0.8%
|
|
| 20 | 1 |
0.8%
|