| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 0 |
0%
|
| 1 | Incorrect answer | 130 |
10.8%
|
| 2 | Correct answer | 1016 |
84.7%
|
| 9 | Don't know | 54 |
4.5%
|
| 998 | Refused | 0 |
0%
|