| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 81 | 
                                    
                                    5.9%
                                 | 
| 2 | NO | 708 | 
                                    
                                    51.9%
                                 | 
| Sysmiss | 575 | 
                                    
                                    42.2%
                                 |