| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 972 | 
                                                                 
                                    
                                    81%
                                 
                                                             | 
                                                        
                    
| 1 | Once or twice | 66 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    
| 2 | Several times | 92 | 
                                                                 
                                    
                                    7.7%
                                 
                                                             | 
                                                        
                    
| 3 | Many times | 64 | 
                                                                 
                                    
                                    5.3%
                                 
                                                             | 
                                                        
                    
| 8 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 9 | Don't Know | 6 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             |