| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| -1 | Don't know | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 1 | Often | 47 | 
                                                                 
                                    
                                    4.7%
                                 
                                                             | 
                                                        
                    
| 2 | Sometimes | 86 | 
                                                                 
                                    
                                    8.6%
                                 
                                                             | 
                                                        
                    
| 3 | Rarely | 145 | 
                                                                 
                                    
                                    14.5%
                                 
                                                             | 
                                                        
                    
| 4 | Never | 720 | 
                                                                 
                                    
                                    72%
                                 
                                                             |