| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 127 | 
                                    
                                    12.6%
                                 | 
| 2 | NO | 10 | 
                                    
                                    1%
                                 | 
| Sysmiss | 867 | 
                                    
                                    86.4%
                                 |