| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 3 |
1.3%
|
| -888 | -888 | 31 |
13.3%
|
| 0 | No | 102 |
43.8%
|
| 1 | Yes | 97 |
41.6%
|
| Sysmiss | 4717 |