| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 11 | 
                                    
                                    0%
                                 | 
| 0 | Never | 13551 | 
                                    
                                    53.4%
                                 | 
| 1 | Less than once a month | 2529 | 
                                    
                                    10%
                                 | 
| 2 | A few times a month | 2747 | 
                                    
                                    10.8%
                                 | 
| 3 | A few times a week | 3384 | 
                                    
                                    13.3%
                                 | 
| 4 | Every day | 2866 | 
                                    
                                    11.3%
                                 | 
| 9 | Don't know | 309 | 
                                    
                                    1.2%
                                 | 
| 998 | Refused | 0 | 
                                    
                                    0%
                                 |