| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1113 | 
                                    
                                    92.1%
                                 | 
| 2 | Once or twice | 17 | 
                                    
                                    1.4%
                                 | 
| 3 | A few times | 16 | 
                                    
                                    1.3%
                                 | 
| 4 | Often | 20 | 
                                    
                                    1.7%
                                 | 
| 5 | Don't know | 39 | 
                                    
                                    3.2%
                                 | 
| 99 | Missing data | 3 | 
                                    
                                    0.2%
                                 |