| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 1 |
0.2%
|
| -777 | Not Applicable | 8 |
1.9%
|
| 0 | No | 26 |
6.3%
|
| 1 | Yes | 380 |
91.6%
|
| Sysmiss | 497 |