| Value | Category | Cases | |
|---|---|---|---|
| -99 | No response | 173 |
5.1%
|
| -88 | Doesn | 30 |
0.9%
|
| 0 | Incorrect | 1300 |
38.2%
|
| 1 | Correct | 1904 |
55.9%
|
| Sysmiss | 460 |