| Value | Category | Cases | |
|---|---|---|---|
| 2 | NO | 434 | 
                                    
                                    20.2%
                                 | 
| 2 | NO | 221 | 
                                    
                                    10.3%
                                 | 
| Sysmiss | 1498 | 
                                    
                                    69.6%
                                 |