| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 1 |
0.5%
|
| -888 | -888 | 7 |
3.5%
|
| -777 | Not Applicable | 19 |
9.5%
|
| 0 | No | 41 |
20.6%
|
| 1 | Yes | 131 |
65.8%
|
| Sysmiss | 713 |