| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 5229 | 
                                                                 
                                    
                                    21.8%
                                 
                                                             | 
                                                        
                    
| 2 | No | 17300 | 
                                                                 
                                    
                                    72%
                                 
                                                             | 
                                                        
                    
| 9 | Missing | 1507 | 
                                                                 
                                    
                                    6.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 491 |