| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 88 | 
                                    
                                    6.5%
                                 | 
| 2 | NO | 467 | 
                                    
                                    34.2%
                                 | 
| Sysmiss | 809 | 
                                    
                                    59.3%
                                 |