| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than once a month | 63 | 
                                                                 
                                    
                                    35.4%
                                 
                                                             | 
                                                        
                    
| 2 | Once a month | 57 | 
                                                                 
                                    
                                    32%
                                 
                                                             | 
                                                        
                    
| 3 | More than once a month | 58 | 
                                                                 
                                    
                                    32.6%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 8393 |