| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 0 |
0%
|
| 1 | Incorrect answer | 264 |
22%
|
| 2 | Correct answer | 893 |
74.4%
|
| 9 | Don't know | 43 |
3.6%
|
| 998 | Refused | 0 |
0%
|