| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | Never | 177 | 
                                    
                                    14.8%
                                 | 
| 1 | Sometimes | 585 | 
                                    
                                    48.8%
                                 | 
| 2 | Always | 415 | 
                                    
                                    34.6%
                                 | 
| 8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don’t know | 23 | 
                                    
                                    1.9%
                                 |