| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 179 |
29.8%
|
| 0 | 22 |
3.7%
|
|
| 10 | 5 |
0.8%
|
|
| 20 | 12 |
2%
|
|
| 25 | 2 |
0.3%
|
|
| 30 | 4 |
0.7%
|
|
| 35 | 1 |
0.2%
|
|
| 40 | 13 |
2.2%
|
|
| 45 | 1 |
0.2%
|
|
| 50 | 19 |
3.2%
|
|
| 55 | 5 |
0.8%
|
|
| 60 | 24 |
4%
|
|
| 65 | 15 |
2.5%
|
|
| 70 | 39 |
6.5%
|
|
| 75 | 27 |
4.5%
|
|
| 80 | 26 |
4.3%
|
|
| 85 | 8 |
1.3%
|
|
| 90 | 4 |
0.7%
|
|
| 95 | 1 |
0.2%
|
|
| 100 | 194 |
32.3%
|