| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 51 | 
                                    
                                    3.4%
                                 | 
| 2 | NO | 838 | 
                                    
                                    55.1%
                                 | 
| Sysmiss | 632 | 
                                    
                                    41.6%
                                 |