| Value | Category | Cases | |
|---|---|---|---|
| 1 | Free | 6 | 
                                                                 
                                    
                                    66.7%
                                 
                                                             | 
                                                        
                    
| 2 | Some students must pay | 1 | 
                                                                 
                                    
                                    11.1%
                                 
                                                             | 
                                                        
                    
| 3 | All must pay | 2 | 
                                                                 
                                    
                                    22.2%
                                 
                                                             |