| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 10 | 
                                    
                                    8.3%
                                 | 
| 2 | NO | 24 | 
                                    
                                    19.8%
                                 | 
| Sysmiss | 87 | 
                                    
                                    71.9%
                                 |