| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 108 | 
                                    
                                    24.3%
                                 | 
| 2 | NO | 14 | 
                                    
                                    3.1%
                                 | 
| Sysmiss | 323 | 
                                    
                                    72.6%
                                 |