| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | No | 2105 | 
                                                                 
                                    
                                    87.7%
                                 
                                                             | 
                                                        
                    
| 1 | Yes, once | 179 | 
                                                                 
                                    
                                    7.5%
                                 
                                                             | 
                                                        
                    
| 2 | Yes, twice | 77 | 
                                                                 
                                    
                                    3.2%
                                 
                                                             | 
                                                        
                    
| 3 | Yes, three or more times | 36 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    
| 9 | Don't Know | 3 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 998 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |