| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 37 |
2.4%
|
| 0 | No | 1395 |
91.8%
|
| 1 | Yes | 87 |
5.7%
|
| Sysmiss | 3431 |