| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 569 | 
                                    
                                    37.4%
                                 | 
| 2 | NO | 24 | 
                                    
                                    1.6%
                                 | 
| Sysmiss | 928 | 
                                    
                                    61%
                                 |