| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 2012 | 
                                                                 
                                    
                                    81%
                                 
                                                             | 
                                                        
                    
| 2 | No | 472 | 
                                                                 
                                    
                                    19%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 8432 |