| Value | Category | Cases | |
|---|---|---|---|
| 1 | A few times last year | 43 | 
                                                                 
                                    
                                    21.2%
                                 
                                                             | 
                                                        
                    
| 2 | About once a month | 41 | 
                                                                 
                                    
                                    20.2%
                                 
                                                             | 
                                                        
                    
| 3 | About once a week | 77 | 
                                                                 
                                    
                                    37.9%
                                 
                                                             | 
                                                        
                    
| 4 | More than once a week | 42 | 
                                                                 
                                    
                                    20.7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 10713 |