| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 | 
                                                                 
                                    
                                    3.6%
                                 
                                                             | 
                                                        
                    
| 2 | 3 | 
                                                                 
                                    
                                    1.1%
                                 
                                                             | 
                                                        
                    |
| 3 | 13 | 
                                                                 
                                    
                                    4.6%
                                 
                                                             | 
                                                        
                    |
| 4 | 12 | 
                                                                 
                                    
                                    4.3%
                                 
                                                             | 
                                                        
                    |
| 5 | 36 | 
                                                                 
                                    
                                    12.9%
                                 
                                                             | 
                                                        
                    |
| 6 | 25 | 
                                                                 
                                    
                                    8.9%
                                 
                                                             | 
                                                        
                    |
| 7 | 22 | 
                                                                 
                                    
                                    7.9%
                                 
                                                             | 
                                                        
                    |
| 8 | 19 | 
                                                                 
                                    
                                    6.8%
                                 
                                                             | 
                                                        
                    |
| 9 | 22 | 
                                                                 
                                    
                                    7.9%
                                 
                                                             | 
                                                        
                    |
| 10 | Very effective | 18 | 
                                                                 
                                    
                                    6.4%
                                 
                                                             | 
                                                        
                    
| 11 | 100 | 
                                                                 
                                    
                                    35.7%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 27 |