| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 15 | 
                                    
                                    1.3%
                                 | 
| 0 | No | 694 | 
                                    
                                    57.8%
                                 | 
| 1 | Yes | 386 | 
                                    
                                    32.2%
                                 | 
| 7 | Not applicable | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't know | 105 | 
                                    
                                    8.8%
                                 | 
| 998 | Refused | 0 | 
                                    
                                    0%
                                 |