| Value | Category | Cases | |
|---|---|---|---|
| 0 | Incorrect/Do not know | 208 | 
                                    
                                    11.4%
                                 | 
| 1 | Correct | 1590 | 
                                    
                                    87.3%
                                 | 
| 999 | Refused/Skipped | 24 | 
                                    
                                    1.3%
                                 |