| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every day | 64 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    
| 2 | More than twice a week | 179 | 
                                                                 
                                    
                                    1.8%
                                 
                                                             | 
                                                        
                    
| 3 | Once or twice a week | 307 | 
                                                                 
                                    
                                    3.1%
                                 
                                                             | 
                                                        
                    
| 4 | A few times a month | 562 | 
                                                                 
                                    
                                    5.7%
                                 
                                                             | 
                                                        
                    
| 5 | Rarely | 1341 | 
                                                                 
                                    
                                    13.6%
                                 
                                                             | 
                                                        
                    
| 6 | Never | 7404 | 
                                                                 
                                    
                                    75.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3 |