| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 88 | 
                                    
                                    8.8%
                                 | 
| 2 | NO | 151 | 
                                    
                                    15%
                                 | 
| Sysmiss | 765 | 
                                    
                                    76.2%
                                 |