| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 438 | 
                                                                 
                                    
                                    83.6%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 81 | 
                                                                 
                                    
                                    15.5%
                                 
                                                             | 
                                                        
                    
| 8 | Not sure | 5 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 5957 |