| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    
| 2 | 2 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 3 | 4 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 4 | 12 | 
                                                                 
                                    
                                    4.1%
                                 
                                                             | 
                                                        
                    |
| 5 | 27 | 
                                                                 
                                    
                                    9.2%
                                 
                                                             | 
                                                        
                    |
| 6 | 22 | 
                                                                 
                                    
                                    7.5%
                                 
                                                             | 
                                                        
                    |
| 7 | 36 | 
                                                                 
                                    
                                    12.3%
                                 
                                                             | 
                                                        
                    |
| 8 | 61 | 
                                                                 
                                    
                                    20.8%
                                 
                                                             | 
                                                        
                    |
| 9 | 33 | 
                                                                 
                                    
                                    11.3%
                                 
                                                             | 
                                                        
                    |
| 10 | Very effective | 47 | 
                                                                 
                                    
                                    16%
                                 
                                                             | 
                                                        
                    
| 11 | 44 | 
                                                                 
                                    
                                    15%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 14 |