| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 1 | No help at all | 50 | 
                                    
                                    4.2%
                                 | 
| 2 | No help | 98 | 
                                    
                                    8.2%
                                 | 
| 3 | No effect | 52 | 
                                    
                                    4.3%
                                 | 
| 4 | Helps a little | 420 | 
                                    
                                    35%
                                 | 
| 5 | Helps a lot | 570 | 
                                    
                                    47.5%
                                 | 
| 8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't know | 10 | 
                                    
                                    0.8%
                                 |