| Value | Category | Cases | |
|---|---|---|---|
| 1 | Almost every day | 119 | 
                                                                 
                                    
                                    9.8%
                                 
                                                             | 
                                                        
                    
| 2 | At least once a week | 240 | 
                                                                 
                                    
                                    19.7%
                                 
                                                             | 
                                                        
                    
| 3 | At least once a month | 382 | 
                                                                 
                                    
                                    31.3%
                                 
                                                             | 
                                                        
                    
| 4 | At least once every six months | 253 | 
                                                                 
                                    
                                    20.7%
                                 
                                                             | 
                                                        
                    
| 5 | At least once a year | 226 | 
                                                                 
                                    
                                    18.5%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 18780 |