| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 435 |
83.8%
|
|
| 10 | 1 |
0.2%
|
|
| 20 | 1 |
0.2%
|
|
| 40 | 2 |
0.4%
|
|
| 50 | 1 |
0.2%
|
|
| 80 | 1 |
0.2%
|
|
| 85 | 1 |
0.2%
|
|
| 100 | 77 |
14.8%
|