| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 5 | 
                                    
                                    0%
                                 | 
| 0 | Never | 5668 | 
                                    
                                    22.3%
                                 | 
| 1 | Once or twice | 3470 | 
                                    
                                    13.7%
                                 | 
| 2 | A few times | 4860 | 
                                    
                                    19.1%
                                 | 
| 3 | Often | 6880 | 
                                    
                                    27.1%
                                 | 
| 7 | No experience | 4345 | 
                                    
                                    17.1%
                                 | 
| 9 | Don't know | 169 | 
                                    
                                    0.7%
                                 | 
| 998 | Refused | 0 | 
                                    
                                    0%
                                 |