| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 323 | 
                                    
                                    37.3%
                                 | 
| 2 | NO | 39 | 
                                    
                                    4.5%
                                 | 
| Sysmiss | 503 | 
                                    
                                    58.2%
                                 |