| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 63 |
10.5%
|
| 0 | 191 |
31.9%
|
|
| 1 | 1 |
0.2%
|
|
| 5 | 4 |
0.7%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 17 |
2.8%
|
|
| 20 | 25 |
4.2%
|
|
| 30 | 34 |
5.7%
|
|
| 33 | 3 |
0.5%
|
|
| 40 | 15 |
2.5%
|
|
| 50 | 60 |
10%
|
|
| 60 | 37 |
6.2%
|
|
| 66 | 1 |
0.2%
|
|
| 70 | 39 |
6.5%
|
|
| 75 | 3 |
0.5%
|
|
| 80 | 38 |
6.4%
|
|
| 90 | 36 |
6%
|
|
| 95 | 5 |
0.8%
|
|
| 99 | 1 |
0.2%
|
|
| 100 | 24 |
4%
|