| Value | Category | Cases | |
|---|---|---|---|
| 1 | OBSERVED | 1875 | 
                                                                 
                                    
                                    35.9%
                                 
                                                             | 
                                                        
                    
| 2 | NOT OBSERVED | 227 | 
                                                                 
                                    
                                    4.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3124 | 
                                                                 
                                    
                                    59.8%
                                 
                                                             |