| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 41 |
4.2%
|
| 0 | 14 |
1.4%
|
|
| 10 | 4 |
0.4%
|
|
| 20 | 17 |
1.7%
|
|
| 25 | 2 |
0.2%
|
|
| 30 | 23 |
2.3%
|
|
| 34 | 1 |
0.1%
|
|
| 40 | 10 |
1%
|
|
| 45 | 1 |
0.1%
|
|
| 50 | 48 |
4.9%
|
|
| 55 | 1 |
0.1%
|
|
| 60 | 84 |
8.6%
|
|
| 65 | 19 |
1.9%
|
|
| 70 | 102 |
10.4%
|
|
| 74 | 1 |
0.1%
|
|
| 75 | 15 |
1.5%
|
|
| 80 | 82 |
8.4%
|
|
| 85 | 3 |
0.3%
|
|
| 90 | 17 |
1.7%
|
|
| 95 | 3 |
0.3%
|
|
| 98 | 1 |
0.1%
|
|
| 100 | 490 |
50.1%
|