| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 2636 | 
                                                                 
                                    
                                    44%
                                 
                                                             | 
                                                        
                    
| 2 | Once or twice in the past month | 1106 | 
                                                                 
                                    
                                    18.5%
                                 
                                                             | 
                                                        
                    
| 3 | About once a week | 851 | 
                                                                 
                                    
                                    14.2%
                                 
                                                             | 
                                                        
                    
| 4 | 2 or 3 times a week | 629 | 
                                                                 
                                    
                                    10.5%
                                 
                                                             | 
                                                        
                    
| 5 | Almost everyday | 380 | 
                                                                 
                                    
                                    6.3%
                                 
                                                             | 
                                                        
                    
| 6 | Everyday | 388 | 
                                                                 
                                    
                                    6.5%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1171 |