| Value | Category | Cases | |
|---|---|---|---|
| 0 | Incorrect/Do not know | 45 | 
                                    
                                    2.5%
                                 | 
| 1 | Correct | 1766 | 
                                    
                                    96.9%
                                 | 
| 999 | Refused/Skipped | 11 | 
                                    
                                    0.6%
                                 |