| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 4 |
0.1%
|
| -888 | -888 | 84 |
2.1%
|
| 0 | No | 399 |
9.7%
|
| 1 | Yes | 3609 |
88.1%
|
| Sysmiss | 854 |