| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 2 |
2.7%
|
| -888 | -888 | 9 |
12%
|
| 0 | No | 36 |
48%
|
| 1 | Yes | 28 |
37.3%
|
| Sysmiss | 4875 |