| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 57 | 
                                    
                                    7%
                                 | 
| 2 | NO | 459 | 
                                    
                                    56.5%
                                 | 
| Sysmiss | 296 | 
                                    
                                    36.5%
                                 |