| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | Never | 1427 | 
                                    
                                    59.5%
                                 | 
| 1 | Rarely | 393 | 
                                    
                                    16.4%
                                 | 
| 2 | Often | 203 | 
                                    
                                    8.5%
                                 | 
| 3 | Always | 99 | 
                                    
                                    4.1%
                                 | 
| 8 | Refused | 3 | 
                                    
                                    0.1%
                                 | 
| 9 | Don’t know | 275 | 
                                    
                                    11.5%
                                 |