| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 619 | 
                                                                 
                                    
                                    94.9%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 29 | 
                                                                 
                                    
                                    4.4%
                                 
                                                             | 
                                                        
                    
| 8 | Not sure | 4 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 5829 |