| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | Never | 75 | 
                                    
                                    6.3%
                                 | 
| 1 | Rarely | 81 | 
                                    
                                    6.8%
                                 | 
| 2 | Often | 254 | 
                                    
                                    21.2%
                                 | 
| 3 | Always | 768 | 
                                    
                                    64%
                                 | 
| 8 | Refused | 1 | 
                                    
                                    0.1%
                                 | 
| 9 | Don’t know | 21 | 
                                    
                                    1.8%
                                 |