| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 11 |
4.1%
|
| 0 | 34 |
12.5%
|
|
| 5 | 1 |
0.4%
|
|
| 10 | 1 |
0.4%
|
|
| 25 | 1 |
0.4%
|
|
| 50 | 4 |
1.5%
|
|
| 70 | 3 |
1.1%
|
|
| 80 | 3 |
1.1%
|
|
| 85 | 1 |
0.4%
|
|
| 100 | 212 |
78.2%
|