| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 18 |
2.5%
|
| 0 | 519 |
72.8%
|
|
| 5 | 6 |
0.8%
|
|
| 10 | 27 |
3.8%
|
|
| 15 | 4 |
0.6%
|
|
| 20 | 42 |
5.9%
|
|
| 25 | 3 |
0.4%
|
|
| 30 | 21 |
2.9%
|
|
| 36 | 1 |
0.1%
|
|
| 40 | 10 |
1.4%
|
|
| 45 | 1 |
0.1%
|
|
| 50 | 38 |
5.3%
|
|
| 60 | 13 |
1.8%
|
|
| 65 | 1 |
0.1%
|
|
| 68 | 1 |
0.1%
|
|
| 70 | 2 |
0.3%
|
|
| 80 | 2 |
0.3%
|
|
| 92 | 1 |
0.1%
|
|
| 100 | 3 |
0.4%
|