| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 345 |
57.7%
|
| 0 | 108 |
18.1%
|
|
| 1 | 4 |
0.7%
|
|
| 2 | 4 |
0.7%
|
|
| 3 | 4 |
0.7%
|
|
| 4 | 2 |
0.3%
|
|
| 5 | 10 |
1.7%
|
|
| 6 | 1 |
0.2%
|
|
| 10 | 9 |
1.5%
|
|
| 12 | 1 |
0.2%
|
|
| 15 | 4 |
0.7%
|
|
| 17 | 1 |
0.2%
|
|
| 20 | 16 |
2.7%
|
|
| 25 | 8 |
1.3%
|
|
| 30 | 18 |
3%
|
|
| 36 | 1 |
0.2%
|
|
| 40 | 14 |
2.3%
|
|
| 45 | 1 |
0.2%
|
|
| 50 | 15 |
2.5%
|
|
| 55 | 1 |
0.2%
|
|
| 60 | 15 |
2.5%
|
|
| 70 | 8 |
1.3%
|
|
| 80 | 4 |
0.7%
|
|
| 90 | 1 |
0.2%
|
|
| 100 | 3 |
0.5%
|