| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 213 | 
                                                                 
                                    
                                    8.9%
                                 
                                                             | 
                                                        
                    
| 1 | Once or twice | 226 | 
                                                                 
                                    
                                    9.4%
                                 
                                                             | 
                                                        
                    
| 2 | A few times | 345 | 
                                                                 
                                    
                                    14.4%
                                 
                                                             | 
                                                        
                    
| 3 | Often | 994 | 
                                                                 
                                    
                                    41.4%
                                 
                                                             | 
                                                        
                    
| 7 | Not applicable | 618 | 
                                                                 
                                    
                                    25.8%
                                 
                                                             | 
                                                        
                    
| 8 | Refused | 3 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 9 | Don't Know | 1 | 
                                                                 
                                    
                                    0%
                                 
                                                             |