| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
1.6%
|
| 20 | 1 |
0.3%
|
|
| 40 | 3 |
0.8%
|
|
| 50 | 7 |
1.9%
|
|
| 60 | 10 |
2.7%
|
|
| 70 | 16 |
4.3%
|
|
| 75 | 1 |
0.3%
|
|
| 80 | 19 |
5.2%
|
|
| 85 | 2 |
0.5%
|
|
| 90 | 18 |
4.9%
|
|
| 92 | 1 |
0.3%
|
|
| 95 | 6 |
1.6%
|
|
| 98 | 1 |
0.3%
|
|
| 99 | 2 |
0.5%
|
|
| 100 | 275 |
74.7%
|