| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
1.1%
|
| 0 | 438 |
67.9%
|
|
| 5 | 2 |
0.3%
|
|
| 7 | 1 |
0.2%
|
|
| 8 | 1 |
0.2%
|
|
| 10 | 10 |
1.6%
|
|
| 15 | 2 |
0.3%
|
|
| 20 | 45 |
7%
|
|
| 25 | 4 |
0.6%
|
|
| 30 | 37 |
5.7%
|
|
| 35 | 4 |
0.6%
|
|
| 40 | 22 |
3.4%
|
|
| 50 | 34 |
5.3%
|
|
| 55 | 1 |
0.2%
|
|
| 60 | 13 |
2%
|
|
| 70 | 6 |
0.9%
|
|
| 75 | 1 |
0.2%
|
|
| 80 | 11 |
1.7%
|
|
| 90 | 3 |
0.5%
|
|
| 100 | 3 |
0.5%
|