| Value | Category | Cases | |
|---|---|---|---|
| 2 | NO | 495 | 
                                    
                                    31.6%
                                 | 
| 2 | NO | 273 | 
                                    
                                    17.5%
                                 | 
| Sysmiss | 796 | 
                                    
                                    50.9%
                                 |