| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 5 |
0.8%
|
| -888 | -888 | 35 |
5.9%
|
| 0 | No | 310 |
52.4%
|
| 1 | Yes | 242 |
40.9%
|
| Sysmiss | 4358 |