| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 637 |
64.3%
|
| 1 | yes: ors - spontan. | 0 |
0%
|
| 2 | yes: ors - probed | 350 |
35.3%
|
| 8 | don't know | 4 |
0.4%
|
| 11 | .Z | 17763 |