| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 4 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    
| 1 | A great deal | 127 | 
                                                                 
                                    
                                    9.7%
                                 
                                                             | 
                                                        
                    
| 2 | Quite a lot | 658 | 
                                                                 
                                    
                                    50.1%
                                 
                                                             | 
                                                        
                    
| 3 | Not very much | 482 | 
                                                                 
                                    
                                    36.7%
                                 
                                                             | 
                                                        
                    
| 4 | None at all | 42 | 
                                                                 
                                    
                                    3.2%
                                 
                                                             |