| Value | Category | Cases | |
|---|---|---|---|
| 1 | Unmodified list | 1209 | 
                                                                 
                                    
                                    27.5%
                                 
                                                             | 
                                                        
                    
| 2 | Modified list | 1306 | 
                                                                 
                                    
                                    29.7%
                                 
                                                             | 
                                                        
                    
| 9 | NA | 24 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1853 | 
                                                                 
                                    
                                    42.2%
                                 
                                                             |