| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 96 | 
                                    
                                    13.1%
                                 | 
| 2 | NO | 50 | 
                                    
                                    6.8%
                                 | 
| Sysmiss | 587 | 
                                    
                                    80.1%
                                 |