| Value | Category | Cases | |
|---|---|---|---|
| 1 | Many times | 3075 | 
                                                                 
                                    
                                    24.6%
                                 
                                                             | 
                                                        
                    
| 2 | A few times | 4727 | 
                                                                 
                                    
                                    37.9%
                                 
                                                             | 
                                                        
                    
| 3 | Never | 4656 | 
                                                                 
                                    
                                    37.3%
                                 
                                                             | 
                                                        
                    
| 4 | Refused/Don?t know | 22 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             |