| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 125 | 
                                    
                                    8.2%
                                 | 
| 2 | NO | 772 | 
                                    
                                    50.8%
                                 | 
| Sysmiss | 624 | 
                                    
                                    41%
                                 |