| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 14 |
2.8%
|
| 0 | 240 |
47.8%
|
|
| 3 | 1 |
0.2%
|
|
| 4 | 1 |
0.2%
|
|
| 5 | 24 |
4.8%
|
|
| 7 | 1 |
0.2%
|
|
| 10 | 37 |
7.4%
|
|
| 15 | 20 |
4%
|
|
| 20 | 65 |
12.9%
|
|
| 25 | 8 |
1.6%
|
|
| 30 | 45 |
9%
|
|
| 35 | 1 |
0.2%
|
|
| 40 | 18 |
3.6%
|
|
| 50 | 12 |
2.4%
|
|
| 60 | 3 |
0.6%
|
|
| 70 | 3 |
0.6%
|
|
| 80 | 4 |
0.8%
|
|
| 90 | 1 |
0.2%
|
|
| 100 | 4 |
0.8%
|