| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 2 |
0.7%
|
| -888 | -888 | 23 |
7.5%
|
| 0 | No | 181 |
59%
|
| 1 | Yes | 101 |
32.9%
|
| Sysmiss | 4643 |