| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 4 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    
| 1 | A great deal | 255 | 
                                                                 
                                    
                                    19.4%
                                 
                                                             | 
                                                        
                    
| 2 | Quite a lot | 739 | 
                                                                 
                                    
                                    56.3%
                                 
                                                             | 
                                                        
                    
| 3 | Not very much | 293 | 
                                                                 
                                    
                                    22.3%
                                 
                                                             | 
                                                        
                    
| 4 | None at all | 22 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             |