| Value | Category | Cases | |
|---|---|---|---|
| 1 | Almost every day | 2116 | 
                                                                 
                                    
                                    16%
                                 
                                                             | 
                                                        
                    
| 2 | At least once a week | 2907 | 
                                                                 
                                    
                                    21.9%
                                 
                                                             | 
                                                        
                    
| 3 | Seldom | 5664 | 
                                                                 
                                    
                                    42.7%
                                 
                                                             | 
                                                        
                    
| 4 | Not at all | 2567 | 
                                                                 
                                    
                                    19.4%
                                 
                                                             | 
                                                        
                    
| 9 | 14 | ||
| Sysmiss | 1641 |