| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 537 | 
                                    
                                    50.1%
                                 | 
| 2 | NO | 112 | 
                                    
                                    10.4%
                                 | 
| Sysmiss | 423 | 
                                    
                                    39.5%
                                 |