| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 3 |
4.8%
|
| -777 | Not Applicable | 4 |
6.5%
|
| 0 | No | 8 |
12.9%
|
| 1 | Yes | 47 |
75.8%
|
| Sysmiss | 850 |