| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 421 | 
                                    
                                    81.9%
                                 | 
| 2 | NO | 39 | 
                                    
                                    7.6%
                                 | 
| Sysmiss | 54 | 
                                    
                                    10.5%
                                 |