| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 1 | A great deal | 152 | 
                                                                 
                                    
                                    11.6%
                                 
                                                             | 
                                                        
                    
| 2 | Quite a lot | 506 | 
                                                                 
                                    
                                    38.5%
                                 
                                                             | 
                                                        
                    
| 3 | Not very much | 477 | 
                                                                 
                                    
                                    36.3%
                                 
                                                             | 
                                                        
                    
| 4 | None at all | 177 | 
                                                                 
                                    
                                    13.5%
                                 
                                                             |