| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | No | 180 | 
                                                                 
                                    
                                    15.3%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 271 | 
                                                                 
                                    
                                    23%
                                 
                                                             | 
                                                        
                    
| 8 | Refused | 12 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    
| 9 | Don't know | 713 | 
                                                                 
                                    
                                    60.6%
                                 
                                                             |