| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 32 | 
                                    
                                    5.5%
                                 | 
| 2 | NO | 271 | 
                                    
                                    46.5%
                                 | 
| Sysmiss | 280 | 
                                    
                                    48%
                                 |