| Value | Category | Cases | |
|---|---|---|---|
| -99 | No response | 69 |
2.3%
|
| -88 | Doesn | 5 |
0.2%
|
| 0 | Incorrect | 962 |
32.1%
|
| 1 | Correct | 1964 |
65.5%
|
| Sysmiss | 867 |