| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.5%
|
| 0 | 214 |
58.8%
|
|
| 10 | 9 |
2.5%
|
|
| 15 | 5 |
1.4%
|
|
| 20 | 35 |
9.6%
|
|
| 25 | 7 |
1.9%
|
|
| 30 | 49 |
13.5%
|
|
| 35 | 8 |
2.2%
|
|
| 40 | 16 |
4.4%
|
|
| 45 | 2 |
0.5%
|
|
| 50 | 8 |
2.2%
|
|
| 55 | 2 |
0.5%
|
|
| 60 | 4 |
1.1%
|
|
| 70 | 1 |
0.3%
|
|
| 100 | 2 |
0.5%
|