| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 1052 | 
                                                                 
                                    
                                    43.8%
                                 
                                                             | 
                                                        
                    
| 1 | Just once or twice | 513 | 
                                                                 
                                    
                                    21.4%
                                 
                                                             | 
                                                        
                    
| 2 | Several times | 534 | 
                                                                 
                                    
                                    22.3%
                                 
                                                             | 
                                                        
                    
| 3 | Many times | 232 | 
                                                                 
                                    
                                    9.7%
                                 
                                                             | 
                                                        
                    
| 4 | Always | 56 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    
| 9 | Don't Know | 13 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    
| 998 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |