| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 2 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 192 | 
                                                                 
                                    
                                    16%
                                 
                                                             | 
                                                        
                    
| 1 | Once or twice | 126 | 
                                                                 
                                    
                                    10.5%
                                 
                                                             | 
                                                        
                    
| 2 | A few times | 223 | 
                                                                 
                                    
                                    18.6%
                                 
                                                             | 
                                                        
                    
| 3 | Often | 300 | 
                                                                 
                                    
                                    25%
                                 
                                                             | 
                                                        
                    
| 7 | No experience | 325 | 
                                                                 
                                    
                                    27.1%
                                 
                                                             | 
                                                        
                    
| 9 | Don't know | 30 | 
                                                                 
                                    
                                    2.5%
                                 
                                                             | 
                                                        
                    
| 998 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |