| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 43 |
1.6%
|
| -6 | Still in process | 6 |
0.2%
|
| 1 | Yes | 523 |
19.4%
|
| 2 | No | 2125 |
78.8%
|