| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | Never | 323 | 
                                                                 
                                    
                                    26.9%
                                 
                                                             | 
                                                        
                    
| 1 | Once or twice | 32 | 
                                                                 
                                    
                                    2.7%
                                 
                                                             | 
                                                        
                    
| 2 | A few times | 91 | 
                                                                 
                                    
                                    7.6%
                                 
                                                             | 
                                                        
                    
| 3 | Often | 408 | 
                                                                 
                                    
                                    34%
                                 
                                                             | 
                                                        
                    
| 7 | No experience | 323 | 
                                                                 
                                    
                                    26.9%
                                 
                                                             | 
                                                        
                    
| 9 | Don't know | 23 | 
                                                                 
                                    
                                    1.9%
                                 
                                                             | 
                                                        
                    
| 998 | Refused | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             |