| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 7405 | 
                                    
                                    90.1%
                                 | 
| 2 | NO | 97 | 
                                    
                                    1.2%
                                 | 
| Sysmiss | 715 | 
                                    
                                    8.7%
                                 |