| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 58 |
16.5%
|
| 0 | 59 |
16.8%
|
|
| 5 | 3 |
0.9%
|
|
| 10 | 10 |
2.8%
|
|
| 15 | 3 |
0.9%
|
|
| 20 | 11 |
3.1%
|
|
| 25 | 2 |
0.6%
|
|
| 30 | 4 |
1.1%
|
|
| 40 | 4 |
1.1%
|
|
| 50 | 13 |
3.7%
|
|
| 60 | 10 |
2.8%
|
|
| 70 | 5 |
1.4%
|
|
| 75 | 4 |
1.1%
|
|
| 80 | 6 |
1.7%
|
|
| 85 | 2 |
0.6%
|
|
| 90 | 5 |
1.4%
|
|
| 95 | 2 |
0.6%
|
|
| 100 | 151 |
42.9%
|