| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 9 | 
                                                                 
                                    
                                    12%
                                 
                                                             | 
                                                        
                    
| 2 | Monthly | 18 | 
                                                                 
                                    
                                    24%
                                 
                                                             | 
                                                        
                    
| 3 | A few times a year | 38 | 
                                                                 
                                    
                                    50.7%
                                 
                                                             | 
                                                        
                    
| 4 | Rarely | 9 | 
                                                                 
                                    
                                    12%
                                 
                                                             | 
                                                        
                    
| 5 | Never | 1 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 21 |