| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | Never | 1653 | 
                                    
                                    68.9%
                                 | 
| 1 | Sometimes | 426 | 
                                    
                                    17.8%
                                 | 
| 2 | Often | 119 | 
                                    
                                    5%
                                 | 
| 3 | Always | 104 | 
                                    
                                    4.3%
                                 | 
| 7 | Not applicable | 13 | 
                                    
                                    0.5%
                                 | 
| 8 | Refused | 2 | 
                                    
                                    0.1%
                                 | 
| 9 | Don’t know | 83 | 
                                    
                                    3.5%
                                 |