| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 6 | 
                                    
                                    0.4%
                                 | 
| 2 | NO | 549 | 
                                    
                                    40.2%
                                 | 
| Sysmiss | 809 | 
                                    
                                    59.3%
                                 |