| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 5 |
0.1%
|
| -888 | -888 | 38 |
0.8%
|
| 0 | No | 4432 |
96.5%
|
| 1 | Yes | 116 |
2.5%
|
| Sysmiss | 359 |