| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 331 | 
                                                                 
                                    
                                    2.1%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 15411 | 
                                                                 
                                    
                                    97.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 9 |