| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 55 | 
                                    
                                    2.3%
                                 | 
| 2 | NO | 170 | 
                                    
                                    7.2%
                                 | 
| Sysmiss | 2136 | 
                                    
                                    90.5%
                                 |