| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 51 |
18.8%
|
| 0 | 42 |
15.5%
|
|
| 1 | 1 |
0.4%
|
|
| 5 | 1 |
0.4%
|
|
| 10 | 8 |
3%
|
|
| 20 | 13 |
4.8%
|
|
| 30 | 14 |
5.2%
|
|
| 40 | 11 |
4.1%
|
|
| 50 | 29 |
10.7%
|
|
| 55 | 1 |
0.4%
|
|
| 57 | 1 |
0.4%
|
|
| 60 | 10 |
3.7%
|
|
| 70 | 23 |
8.5%
|
|
| 75 | 3 |
1.1%
|
|
| 80 | 10 |
3.7%
|
|
| 90 | 7 |
2.6%
|
|
| 95 | 2 |
0.7%
|
|
| 97 | 1 |
0.4%
|
|
| 98 | 3 |
1.1%
|
|
| 100 | 40 |
14.8%
|