| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 3107 | 
                                                                 
                                    
                                    12.9%
                                 
                                                             | 
                                                        
                    
| 2 | No | 20519 | 
                                                                 
                                    
                                    85.4%
                                 
                                                             | 
                                                        
                    
| 9 | Missing | 410 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 491 |