| Value | Category | Cases | |
|---|---|---|---|
| 6 | 244 | 
                                    
                                    27.9%
                                 | |
| 7 | 441 | 
                                    
                                    50.4%
                                 | |
| 8 | 184 | 
                                    
                                    21%
                                 | |
| 9 | 6 | 
                                    
                                    0.7%
                                 | |
| Sysmiss | 123 |