| Value | Category | Cases | |
|---|---|---|---|
| 0 | 428 | 
                                                                 
                                    
                                    97.7%
                                 
                                                             | 
                                                        
                    |
| 1 | 10 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1848 |