| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very weak | 302 | 
                                                                 
                                    
                                    17.7%
                                 
                                                             | 
                                                        
                    
| 2 | Weak | 186 | 
                                                                 
                                    
                                    10.9%
                                 
                                                             | 
                                                        
                    
| 3 | Average | 421 | 
                                                                 
                                    
                                    24.6%
                                 
                                                             | 
                                                        
                    
| 4 | High | 421 | 
                                                                 
                                    
                                    24.6%
                                 
                                                             | 
                                                        
                    
| 5 | Very high | 380 | 
                                                                 
                                    
                                    22.2%
                                 
                                                             |