| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1003 | 
                                    
                                    85.2%
                                 | 
| 2 | Once or twice | 68 | 
                                    
                                    5.8%
                                 | 
| 3 | A few times | 38 | 
                                    
                                    3.2%
                                 | 
| 4 | Often | 65 | 
                                    
                                    5.5%
                                 | 
| 5 | Don't know | 0 | 
                                    
                                    0%
                                 | 
| 99 | Missing data | 3 | 
                                    
                                    0.3%
                                 |