| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very weak | 16 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    
| 2 | Weak | 165 | 
                                                                 
                                    
                                    10.7%
                                 
                                                             | 
                                                        
                    
| 3 | Average | 641 | 
                                                                 
                                    
                                    41.7%
                                 
                                                             | 
                                                        
                    
| 4 | High | 614 | 
                                                                 
                                    
                                    39.9%
                                 
                                                             | 
                                                        
                    
| 5 | Very high | 103 | 
                                                                 
                                    
                                    6.7%
                                 
                                                             |