| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
1%
|
| 0 | 7 |
1.2%
|
|
| 2 | 1 |
0.2%
|
|
| 10 | 3 |
0.5%
|
|
| 15 | 2 |
0.3%
|
|
| 20 | 13 |
2.2%
|
|
| 22 | 1 |
0.2%
|
|
| 25 | 6 |
1%
|
|
| 30 | 9 |
1.5%
|
|
| 40 | 9 |
1.5%
|
|
| 45 | 2 |
0.3%
|
|
| 50 | 43 |
7.1%
|
|
| 55 | 2 |
0.3%
|
|
| 60 | 17 |
2.8%
|
|
| 65 | 2 |
0.3%
|
|
| 70 | 32 |
5.3%
|
|
| 75 | 13 |
2.2%
|
|
| 80 | 58 |
9.6%
|
|
| 85 | 8 |
1.3%
|
|
| 90 | 22 |
3.6%
|
|
| 94 | 1 |
0.2%
|
|
| 95 | 3 |
0.5%
|
|
| 100 | 343 |
56.9%
|