| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 565 | 
                                    
                                    16.7%
                                 | 
| 2 | NO | 9 | 
                                    
                                    0.3%
                                 | 
| Sysmiss | 2817 | 
                                    
                                    83.1%
                                 |