| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 15 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    
| 2 | 4 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 3 | 11 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 4 | 10 | 
                                                                 
                                    
                                    3.7%
                                 
                                                             | 
                                                        
                    |
| 5 | 22 | 
                                                                 
                                    
                                    8.1%
                                 
                                                             | 
                                                        
                    |
| 6 | 10 | 
                                                                 
                                    
                                    3.7%
                                 
                                                             | 
                                                        
                    |
| 7 | 32 | 
                                                                 
                                    
                                    11.8%
                                 
                                                             | 
                                                        
                    |
| 8 | 20 | 
                                                                 
                                    
                                    7.4%
                                 
                                                             | 
                                                        
                    |
| 9 | 21 | 
                                                                 
                                    
                                    7.7%
                                 
                                                             | 
                                                        
                    |
| 10 | Very effective | 16 | 
                                                                 
                                    
                                    5.9%
                                 
                                                             | 
                                                        
                    
| 11 | 111 | 
                                                                 
                                    
                                    40.8%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 35 |