| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 2 |
2.2%
|
| -888 | -888 | 4 |
4.3%
|
| 0 | No | 51 |
55.4%
|
| 1 | Yes | 35 |
38%
|
| Sysmiss | 4858 |