| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 20 | 4 |
2.5%
|
|
| 30 | 3 |
1.9%
|
|
| 40 | 2 |
1.3%
|
|
| 50 | 3 |
1.9%
|
|
| 60 | 24 |
15.3%
|
|
| 67 | 1 |
0.6%
|
|
| 70 | 19 |
12.1%
|
|
| 75 | 5 |
3.2%
|
|
| 80 | 21 |
13.4%
|
|
| 81 | 1 |
0.6%
|
|
| 83 | 1 |
0.6%
|
|
| 90 | 8 |
5.1%
|
|
| 95 | 2 |
1.3%
|
|
| 100 | 63 |
40.1%
|