| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 8482 | 
                                                                 
                                    
                                    68%
                                 
                                                             | 
                                                        
                    
| 2 | NO | 3484 | 
                                                                 
                                    
                                    27.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 514 | 
                                                                 
                                    
                                    4.1%
                                 
                                                             |