| Value | Category | Cases | |
|---|---|---|---|
| -99 | No response | 25 |
0.7%
|
| -88 | Doesn | 2 |
0.1%
|
| 0 | Incorrect | 1926 |
56.5%
|
| 1 | Correct | 1454 |
42.7%
|
| Sysmiss | 460 |