| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 134 |
89.3%
|
|
| 4 | 1 |
0.7%
|
|
| 5 | 1 |
0.7%
|
|
| 10 | 2 |
1.3%
|
|
| 20 | 3 |
2%
|
|
| 30 | 1 |
0.7%
|
|
| 40 | 1 |
0.7%
|
|
| 80 | 1 |
0.7%
|
|
| 100 | 6 |
4%
|