| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 70 |
0.7%
|
| -6 | Still in process | 5 |
0.1%
|
| 1 | Yes | 2497 |
26.6%
|
| 2 | No | 6804 |
72.6%
|