| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 19 | 
                                    
                                    2.2%
                                 | 
| 2 | NO | 159 | 
                                    
                                    18.3%
                                 | 
| Sysmiss | 693 | 
                                    
                                    79.6%
                                 |