| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 2 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    
| 1 | A great deal | 100 | 
                                                                 
                                    
                                    7.6%
                                 
                                                             | 
                                                        
                    
| 2 | Quite a lot | 454 | 
                                                                 
                                    
                                    34.6%
                                 
                                                             | 
                                                        
                    
| 3 | Not very much | 575 | 
                                                                 
                                    
                                    43.8%
                                 
                                                             | 
                                                        
                    
| 4 | None at all | 182 | 
                                                                 
                                    
                                    13.9%
                                 
                                                             |