| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 11 |
3%
|
| 0 | 158 |
43.8%
|
|
| 1 | 4 |
1.1%
|
|
| 2 | 5 |
1.4%
|
|
| 3 | 4 |
1.1%
|
|
| 4 | 2 |
0.6%
|
|
| 5 | 10 |
2.8%
|
|
| 8 | 1 |
0.3%
|
|
| 9 | 1 |
0.3%
|
|
| 10 | 32 |
8.9%
|
|
| 15 | 6 |
1.7%
|
|
| 20 | 36 |
10%
|
|
| 25 | 5 |
1.4%
|
|
| 30 | 28 |
7.8%
|
|
| 33 | 1 |
0.3%
|
|
| 35 | 2 |
0.6%
|
|
| 36 | 1 |
0.3%
|
|
| 40 | 11 |
3%
|
|
| 50 | 17 |
4.7%
|
|
| 55 | 1 |
0.3%
|
|
| 60 | 6 |
1.7%
|
|
| 65 | 1 |
0.3%
|
|
| 70 | 4 |
1.1%
|
|
| 80 | 4 |
1.1%
|
|
| 100 | 10 |
2.8%
|