| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 735 | 
                                                                 
                                    
                                    3.1%
                                 
                                                             | 
                                                        
                    
| 2 | No | 21629 | 
                                                                 
                                    
                                    90%
                                 
                                                             | 
                                                        
                    
| 9 | Missing | 1672 | 
                                                                 
                                    
                                    7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 491 |