| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 61 | 
                                    
                                    4.5%
                                 | 
| 2 | NO | 622 | 
                                    
                                    45.6%
                                 | 
| Sysmiss | 681 | 
                                    
                                    49.9%
                                 |