| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
0.3%
|
| -6 | Still in process | 14 |
0.7%
|
| 1 | Yes | 482 |
23.3%
|
| 2 | No | 1567 |
75.7%
|