| Value | Category | Cases | |
|---|---|---|---|
| 0 | Incorrect/Do not know | 1425 | 
                                    
                                    78.2%
                                 | 
| 1 | Correct | 343 | 
                                    
                                    18.8%
                                 | 
| 999 | Refused/Skipped | 54 | 
                                    
                                    3%
                                 |