| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 4 |
1.4%
|
| -888 | -888 | 7 |
2.4%
|
| -777 | Not Applicable | 25 |
8.5%
|
| 0 | No | 51 |
17.4%
|
| 1 | Yes | 206 |
70.3%
|
| Sysmiss | 619 |