| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 |
3.2%
|
| 0 | 354 |
86.6%
|
|
| 1 | 5 |
1.2%
|
|
| 2 | 4 |
1%
|
|
| 3 | 2 |
0.5%
|
|
| 4 | 2 |
0.5%
|
|
| 5 | 4 |
1%
|
|
| 6 | 1 |
0.2%
|
|
| 10 | 6 |
1.5%
|
|
| 12 | 1 |
0.2%
|
|
| 20 | 4 |
1%
|
|
| 25 | 1 |
0.2%
|
|
| 30 | 4 |
1%
|
|
| 39 | 1 |
0.2%
|
|
| 40 | 1 |
0.2%
|
|
| 50 | 2 |
0.5%
|
|
| 55 | 1 |
0.2%
|
|
| 57 | 1 |
0.2%
|
|
| 80 | 1 |
0.2%
|
|
| 100 | 1 |
0.2%
|