| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 5 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 563 | 
                                                                 
                                    
                                    46.9%
                                 
                                                             | 
                                                        
                    
| 1 | Just once or twice | 211 | 
                                                                 
                                    
                                    17.6%
                                 
                                                             | 
                                                        
                    
| 2 | Several times | 298 | 
                                                                 
                                    
                                    24.8%
                                 
                                                             | 
                                                        
                    
| 3 | Many times | 96 | 
                                                                 
                                    
                                    8%
                                 
                                                             | 
                                                        
                    
| 4 | Always | 27 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    
| 9 | Don't Know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 998 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |