| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 9 | 
                            
                             
                                
                                1.5%
                                                             
                            
                         | 
                        
                    
| 1 | Yes | 596 | 
                            
                             
                                
                                98.5%
                                                             
                            
                         | 
                        
                    
| Sysmiss | 4 |