| Value | Category | Cases | |
|---|---|---|---|
| 1 | General certificate | 4064 | 
                                                                 
                                    
                                    67.5%
                                 
                                                             | 
                                                        
                    
| 2 | Diploma certificate | 1681 | 
                                                                 
                                    
                                    27.9%
                                 
                                                             | 
                                                        
                    
| 3 | Higher diploma certificate | 277 | 
                                                                 
                                    
                                    4.6%
                                 
                                                             |