| Value | Category | Cases | |
|---|---|---|---|
| 4 | 1 | 
                                    
                                    0.1%
                                 | |
| 5 | 15 | 
                                    
                                    1.1%
                                 | |
| 6 | 42 | 
                                    
                                    3%
                                 | |
| 7 | 143 | 
                                    
                                    10.3%
                                 | |
| 8 | 1185 | 
                                    
                                    85.5%
                                 | |
| Sysmiss | 114 |