| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 1 |
0.4%
|
| -888 | -888 | 5 |
2.1%
|
| -777 | Not Applicable | 24 |
9.9%
|
| 0 | No | 49 |
20.2%
|
| 1 | Yes | 163 |
67.4%
|
| Sysmiss | 670 |