| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 530 | 
                                    
                                    38.9%
                                 | 
| 3 | NO | 1 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 833 | 
                                    
                                    61.1%
                                 |