| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 566 | 
                                                                 
                                    
                                    97.6%
                                 
                                                             | 
                                                        
                    
| 2 | 1 | 14 | 
                                                                 
                                    
                                    2.4%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 818 |