| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 3 |
2%
|
| -888 | -888 | 8 |
5.4%
|
| 0 | No | 74 |
50%
|
| 1 | Yes | 63 |
42.6%
|
| Sysmiss | 4802 |