| Value | Category | Cases | |
|---|---|---|---|
| 40 | 8 | 
                                                                 
                                    
                                    20%
                                 
                                                             | 
                                                        
                    |
| 50 | 10 | 
                                                                 
                                    
                                    25%
                                 
                                                             | 
                                                        
                    |
| 60 | 21 | 
                                                                 
                                    
                                    52.5%
                                 
                                                             | 
                                                        
                    |
| 80 | 1 | 
                                                                 
                                    
                                    2.5%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 79 |