| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 18 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    
| 2 | No | 2 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2967 | 
                                                                 
                                    
                                    99.3%
                                 
                                                             |