| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 30 | 
                                                                 
                                    
                                    3%
                                 
                                                             | 
                                                        
                    
| 1 | Very Frequently | 46 | 
                                                                 
                                    
                                    4.6%
                                 
                                                             | 
                                                        
                    
| 2 | Quite frequently | 71 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    
| 3 | Not frequently | 288 | 
                                                                 
                                    
                                    28.8%
                                 
                                                             | 
                                                        
                    
| 4 | Not at all frequently | 565 | 
                                                                 
                                    
                                    56.5%
                                 
                                                             |