| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 6 | 
                                                                 
                                    
                                    5.4%
                                 
                                                             | 
                                                        
                    
| 2 | Every few weeks | 28 | 
                                                                 
                                    
                                    25%
                                 
                                                             | 
                                                        
                    
| 3 | Every few months | 64 | 
                                                                 
                                    
                                    57.1%
                                 
                                                             | 
                                                        
                    
| 4 | Not at all | 14 | 
                                                                 
                                    
                                    12.5%
                                 
                                                             |