| Value | Category | Cases | |
|---|---|---|---|
| -888 | Refuse to Answer | 2 |
0.1%
|
| -777 | Half Complete | 156 |
8.6%
|
| 0 | No | 1452 |
79.8%
|
| 1 | Yes | 210 |
11.5%
|
| Sysmiss | 3185 |