| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 40 | 
                            
                             
                                
                                1.7%
                                                             
                            
                         | 
                        
                    
| 2 | no | 1889 | 
                            
                             
                                
                                80.7%
                                                             
                            
                         | 
                        
                    
| 9 | not applicable | 346 | 
                            
                             
                                
                                14.8%
                                                             
                            
                         | 
                        
                    
| 9999995 | missing:impute | 66 | 
                            
                             
                                
                                2.8%
                                                             
                            
                         | 
                        
                    
| Sysmiss | 29 |