| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 695 | 
                                                                 
                                    
                                    51.5%
                                 
                                                             | 
                                                        
                    
| 1 | Occasionally | 495 | 
                                                                 
                                    
                                    36.7%
                                 
                                                             | 
                                                        
                    
| 2 | Frequently | 153 | 
                                                                 
                                    
                                    11.3%
                                 
                                                             | 
                                                        
                    
| 9 | Don't know | 7 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    
| 998 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |