| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 648 | 
                                    
                                    54%
                                 | 
| 2 | Once or twice | 134 | 
                                    
                                    11.2%
                                 | 
| 3 | A few times | 174 | 
                                    
                                    14.5%
                                 | 
| 4 | Often | 239 | 
                                    
                                    19.9%
                                 | 
| 5 | Don't know | 1 | 
                                    
                                    0.1%
                                 | 
| 99 | Missing data | 4 | 
                                    
                                    0.3%
                                 |