| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 5 |
0.1%
|
| -888 | -888 | 27 |
0.6%
|
| 0 | No | 4542 |
98.9%
|
| 1 | Yes | 17 |
0.4%
|
| Sysmiss | 359 |