| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 25 |
16.6%
|
| 0 | 20 |
13.2%
|
|
| 5 | 1 |
0.7%
|
|
| 6 | 1 |
0.7%
|
|
| 10 | 6 |
4%
|
|
| 15 | 2 |
1.3%
|
|
| 20 | 10 |
6.6%
|
|
| 25 | 2 |
1.3%
|
|
| 30 | 11 |
7.3%
|
|
| 40 | 8 |
5.3%
|
|
| 50 | 9 |
6%
|
|
| 60 | 2 |
1.3%
|
|
| 70 | 5 |
3.3%
|
|
| 80 | 10 |
6.6%
|
|
| 85 | 2 |
1.3%
|
|
| 90 | 7 |
4.6%
|
|
| 95 | 2 |
1.3%
|
|
| 100 | 28 |
18.5%
|