| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 1 | No help at all | 13 | 
                                    
                                    1.1%
                                 | 
| 2 | No help | 30 | 
                                    
                                    2.5%
                                 | 
| 3 | No effect | 13 | 
                                    
                                    1.1%
                                 | 
| 4 | Helps a little | 247 | 
                                    
                                    20.6%
                                 | 
| 5 | Helps a lot | 893 | 
                                    
                                    74.4%
                                 | 
| 8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't know | 4 | 
                                    
                                    0.3%
                                 |