| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 838 | 
                                    
                                    69.8%
                                 | 
| 2 | Once or twice | 117 | 
                                    
                                    9.8%
                                 | 
| 3 | A few times | 106 | 
                                    
                                    8.8%
                                 | 
| 4 | Often | 118 | 
                                    
                                    9.8%
                                 | 
| 5 | Don't know | 3 | 
                                    
                                    0.3%
                                 | 
| 99 | Missing data | 18 | 
                                    
                                    1.5%
                                 |