| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 44 | 
                                    
                                    2.9%
                                 | 
| 2 | NO | 884 | 
                                    
                                    58.1%
                                 | 
| Sysmiss | 593 | 
                                    
                                    39%
                                 |