| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 828 | 
                                                                 
                                    
                                    68.5%
                                 
                                                             | 
                                                        
                    
| 1 | Only once | 134 | 
                                                                 
                                    
                                    11.1%
                                 
                                                             | 
                                                        
                    
| 2 | A few times | 124 | 
                                                                 
                                    
                                    10.3%
                                 
                                                             | 
                                                        
                    
| 3 | Often | 115 | 
                                                                 
                                    
                                    9.5%
                                 
                                                             | 
                                                        
                    
| 9 | Don't know | 7 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    
| 998 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |