| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 49 | 
                                    
                                    4.7%
                                 | 
| 2 | NO | 470 | 
                                    
                                    45.5%
                                 | 
| Sysmiss | 513 | 
                                    
                                    49.7%
                                 |