| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 | 
                                    
                                    0%
                                 | 
| 0 | No | 15162 | 
                                    
                                    59.7%
                                 | 
| 1 | Yes | 9456 | 
                                    
                                    37.2%
                                 | 
| 8 | Refused | 260 | 
                                    
                                    1%
                                 | 
| 9 | Don't know | 517 | 
                                    
                                    2%
                                 |