| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effectively at all | 8 | 
                                    
                                    4.1%
                                 | 
| 2 | 8 | 
                                    
                                    4.1%
                                 | |
| 3 | 23 | 
                                    
                                    11.9%
                                 | |
| 4 | 13 | 
                                    
                                    6.7%
                                 | |
| 5 | 38 | 
                                    
                                    19.7%
                                 | |
| 6 | 29 | 
                                    
                                    15%
                                 | |
| 7 | 21 | 
                                    
                                    10.9%
                                 | |
| 8 | 16 | 
                                    
                                    8.3%
                                 | |
| 9 | 8 | 
                                    
                                    4.1%
                                 | |
| 10 | Very effectively | 29 | 
                                    
                                    15%
                                 | 
| 11 | Don't know | 85 | |
| Sysmiss | 41 |