| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 610 | 
                                                                 
                                    
                                    13.9%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 1176 | 
                                                                 
                                    
                                    26.8%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2605 | 
                                                                 
                                    
                                    59.3%
                                 
                                                             |