| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 145 |
58%
|
|
| 5 | 2 |
0.8%
|
|
| 6 | 1 |
0.4%
|
|
| 10 | 12 |
4.8%
|
|
| 13 | 1 |
0.4%
|
|
| 15 | 3 |
1.2%
|
|
| 20 | 16 |
6.4%
|
|
| 22 | 1 |
0.4%
|
|
| 25 | 4 |
1.6%
|
|
| 30 | 7 |
2.8%
|
|
| 35 | 3 |
1.2%
|
|
| 40 | 3 |
1.2%
|
|
| 50 | 3 |
1.2%
|
|
| 60 | 5 |
2%
|
|
| 70 | 3 |
1.2%
|
|
| 75 | 3 |
1.2%
|
|
| 80 | 15 |
6%
|
|
| 90 | 3 |
1.2%
|
|
| 95 | 2 |
0.8%
|
|
| 100 | 18 |
7.2%
|