| Value | Category | Cases | |
|---|---|---|---|
| a | 369 | 
                                                                 
                                    
                                    44%
                                 
                                                             | 
                                                        
                    |
| b | 187 | 
                                                                 
                                    
                                    22.3%
                                 
                                                             | 
                                                        
                    |
| c | 62 | 
                                                                 
                                    
                                    7.4%
                                 
                                                             | 
                                                        
                    |
| d | 108 | 
                                                                 
                                    
                                    12.9%
                                 
                                                             | 
                                                        
                    |
| z | 112 | 
                                                                 
                                    
                                    13.4%
                                 
                                                             |