| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 1 | A great deal | 96 | 
                                                                 
                                    
                                    7.3%
                                 
                                                             | 
                                                        
                    
| 2 | Quite a lot | 428 | 
                                                                 
                                    
                                    32.6%
                                 
                                                             | 
                                                        
                    
| 3 | Not very much | 660 | 
                                                                 
                                    
                                    50.3%
                                 
                                                             | 
                                                        
                    
| 4 | None at all | 128 | 
                                                                 
                                    
                                    9.7%
                                 
                                                             |