| Value | Category | Cases | |
|---|---|---|---|
| 0 | Low knowledge | 623 | 
                                                                 
                                    
                                    14.2%
                                 
                                                             | 
                                                        
                    
| 1 | 1088 | 
                                                                 
                                    
                                    24.8%
                                 
                                                             | 
                                                        
                    |
| 2 | 1177 | 
                                                                 
                                    
                                    26.8%
                                 
                                                             | 
                                                        
                    |
| 3 | 1003 | 
                                                                 
                                    
                                    22.8%
                                 
                                                             | 
                                                        
                    |
| 4 | High knowledge | 501 | 
                                                                 
                                    
                                    11.4%
                                 
                                                             |