| Value | Category | Cases | |
|---|---|---|---|
| 0 | Incorrect/Do not know | 330 | 
                                    
                                    18.1%
                                 | 
| 1 | Correct | 1459 | 
                                    
                                    80.1%
                                 | 
| 999 | Refused/Skipped | 32 | 
                                    
                                    1.8%
                                 | 
| Sysmiss | 1 |