| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 53 | 
                                    
                                    5.3%
                                 | 
| 2 | NO | 596 | 
                                    
                                    59.4%
                                 | 
| Sysmiss | 355 | 
                                    
                                    35.4%
                                 |