| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 1 | A great deal | 106 | 
                                                                 
                                    
                                    8.1%
                                 
                                                             | 
                                                        
                    
| 2 | Quite a lot | 668 | 
                                                                 
                                    
                                    50.9%
                                 
                                                             | 
                                                        
                    
| 3 | Not very much | 498 | 
                                                                 
                                    
                                    37.9%
                                 
                                                             | 
                                                        
                    
| 4 | None at all | 40 | 
                                                                 
                                    
                                    3%
                                 
                                                             |