| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 12 | 
                                                                 
                                    
                                    1.2%
                                 
                                                             | 
                                                        
                    
| -1 | Don't know | 4 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    
| 1 | Frequently | 136 | 
                                                                 
                                    
                                    13.6%
                                 
                                                             | 
                                                        
                    
| 2 | Occasionally | 549 | 
                                                                 
                                    
                                    54.9%
                                 
                                                             | 
                                                        
                    
| 3 | Never | 299 | 
                                                                 
                                    
                                    29.9%
                                 
                                                             |