| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 729 | 
                                    
                                    72.6%
                                 | 
| 2 | NO | 60 | 
                                    
                                    6%
                                 | 
| Sysmiss | 215 | 
                                    
                                    21.4%
                                 |