| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 976 | 
                                    
                                    81.3%
                                 | 
| 2 | Once or twice | 74 | 
                                    
                                    6.2%
                                 | 
| 3 | A few times | 75 | 
                                    
                                    6.3%
                                 | 
| 4 | Often | 55 | 
                                    
                                    4.6%
                                 | 
| 5 | Don't know | 5 | 
                                    
                                    0.4%
                                 | 
| 99 | Missing data | 15 | 
                                    
                                    1.3%
                                 |