| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 483 | 
                                                                 
                                    
                                    44.1%
                                 
                                                             | 
                                                        
                    
| 9 | Missing | 611 | 
                                                                 
                                    
                                    55.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 31505 |