| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 54 | 
                                                                 
                                    
                                    1.8%
                                 
                                                             | 
                                                        
                    
| 2 | No | 42 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2891 | 
                                                                 
                                    
                                    96.8%
                                 
                                                             |