| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 86 |
71.7%
|
|
| 50 | 3 |
2.5%
|
|
| 80 | 1 |
0.8%
|
|
| 100 | 30 |
25%
|