| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 19 |
8.2%
|
| 10 | 1 |
0.4%
|
|
| 15 | 1 |
0.4%
|
|
| 20 | 1 |
0.4%
|
|
| 25 | 2 |
0.9%
|
|
| 30 | 5 |
2.1%
|
|
| 33 | 2 |
0.9%
|
|
| 37 | 1 |
0.4%
|
|
| 40 | 1 |
0.4%
|
|
| 49 | 1 |
0.4%
|
|
| 50 | 26 |
11.2%
|
|
| 51 | 4 |
1.7%
|
|
| 53 | 2 |
0.9%
|
|
| 54 | 1 |
0.4%
|
|
| 60 | 4 |
1.7%
|
|
| 65 | 2 |
0.9%
|
|
| 66 | 1 |
0.4%
|
|
| 70 | 2 |
0.9%
|
|
| 75 | 2 |
0.9%
|
|
| 80 | 8 |
3.4%
|
|
| 83 | 1 |
0.4%
|
|
| 90 | 3 |
1.3%
|
|
| 95 | 4 |
1.7%
|
|
| 99 | 2 |
0.9%
|
|
| 100 | 137 |
58.8%
|