| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 6 | 
                            
                             
                                
                                0.3%
                                                             
                            
                         | 
                        
                    
| 2 | no | 55 | 
                            
                             
                                
                                2.3%
                                                             
                            
                         | 
                        
                    
| 9 | not applicable | 2197 | 
                            
                             
                                
                                93.8%
                                                             
                            
                         | 
                        
                    
| 9999995 | missing:impute | 83 | 
                            
                             
                                
                                3.5%
                                                             
                            
                         | 
                        
                    
| Sysmiss | 29 |