| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 8 | 
                                                                 
                                    
                                    7.1%
                                 
                                                             | 
                                                        
                    
| 2 | Every few weeks | 27 | 
                                                                 
                                    
                                    24.1%
                                 
                                                             | 
                                                        
                    
| 3 | Every few months | 60 | 
                                                                 
                                    
                                    53.6%
                                 
                                                             | 
                                                        
                    
| 4 | Not at all | 17 | 
                                                                 
                                    
                                    15.2%
                                 
                                                             |