| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 558 | 
                                    
                                    36.7%
                                 | 
| 2 | NO | 35 | 
                                    
                                    2.3%
                                 | 
| Sysmiss | 928 | 
                                    
                                    61%
                                 |