| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 19412 | 
                                                                 
                                    
                                    96.5%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 649 | 
                                                                 
                                    
                                    3.2%
                                 
                                                             | 
                                                        
                    
| 99 | Not stated | 50 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 293322 |