| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 534 | 
                                    
                                    15.7%
                                 | 
| 2 | NO | 37 | 
                                    
                                    1.1%
                                 | 
| Sysmiss | 2820 | 
                                    
                                    83.2%
                                 |