| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very Good | 598035 | 
                                                                 
                                    
                                    77.2%
                                 
                                                             | 
                                                        
                    
| 2 | Good | 101070 | 
                                                                 
                                    
                                    13%
                                 
                                                             | 
                                                        
                    
| 3 | Fair | 54152 | 
                                                                 
                                    
                                    7%
                                 
                                                             | 
                                                        
                    
| 4 | No Knowledge | 20218 | 
                                                                 
                                    
                                    2.6%
                                 
                                                             | 
                                                        
                    
| 9 | Unspecified | 1477 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             |