| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 120 | 
                                                                 
                                    
                                    10%
                                 
                                                             | 
                                                        
                    
| 1 | Once or twice | 99 | 
                                                                 
                                    
                                    8.3%
                                 
                                                             | 
                                                        
                    
| 2 | A few times | 149 | 
                                                                 
                                    
                                    12.4%
                                 
                                                             | 
                                                        
                    
| 3 | Often | 298 | 
                                                                 
                                    
                                    24.8%
                                 
                                                             | 
                                                        
                    
| 7 | Not applicable | 532 | 
                                                                 
                                    
                                    44.3%
                                 
                                                             | 
                                                        
                    
| 8 | Refused | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 9 | Don't Know | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             |