| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 1789 | 
                                                                 
                                    
                                    74.5%
                                 
                                                             | 
                                                        
                    
| 1 | Only sometimes | 433 | 
                                                                 
                                    
                                    18%
                                 
                                                             | 
                                                        
                    
| 2 | Often | 122 | 
                                                                 
                                    
                                    5.1%
                                 
                                                             | 
                                                        
                    
| 3 | Always | 31 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    
| 9 | Don't know | 25 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    
| 998 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |