| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 8 | 1 |
0.4%
|
|
| 20 | 3 |
1.2%
|
|
| 25 | 1 |
0.4%
|
|
| 26 | 1 |
0.4%
|
|
| 30 | 8 |
3.2%
|
|
| 35 | 5 |
2%
|
|
| 38 | 1 |
0.4%
|
|
| 40 | 25 |
10%
|
|
| 45 | 7 |
2.8%
|
|
| 50 | 23 |
9.2%
|
|
| 51 | 4 |
1.6%
|
|
| 55 | 3 |
1.2%
|
|
| 57 | 1 |
0.4%
|
|
| 60 | 15 |
6%
|
|
| 63 | 1 |
0.4%
|
|
| 65 | 3 |
1.2%
|
|
| 70 | 8 |
3.2%
|
|
| 75 | 5 |
2%
|
|
| 79 | 1 |
0.4%
|
|
| 80 | 6 |
2.4%
|
|
| 83 | 1 |
0.4%
|
|
| 85 | 2 |
0.8%
|
|
| 100 | 125 |
50%
|