| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 23 |
15.4%
|
| 0 | 94 |
63.1%
|
|
| 5 | 1 |
0.7%
|
|
| 10 | 10 |
6.7%
|
|
| 20 | 11 |
7.4%
|
|
| 25 | 2 |
1.3%
|
|
| 30 | 3 |
2%
|
|
| 50 | 2 |
1.3%
|
|
| 60 | 1 |
0.7%
|
|
| 95 | 1 |
0.7%
|
|
| 100 | 1 |
0.7%
|