| Value | Category | Cases | |
|---|---|---|---|
| 1 | 3 | 
                                    
                                    0.2%
                                 | |
| 3 | 1715 | 
                                    
                                    87.4%
                                 | |
| 8 | 245 | 
                                    
                                    12.5%
                                 | |
| Sysmiss | 1571 |