| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 2 |
4.9%
|
| -777 | Not Applicable | 1 |
2.4%
|
| 0 | No | 9 |
22%
|
| 1 | Yes | 29 |
70.7%
|
| Sysmiss | 871 |