| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Daily | 152 | 
                                                                 
                                    
                                    17.3%
                                 
                                                             | 
                                                        
                    
| 2 | 2. Once a week | 246 | 
                                                                 
                                    
                                    28%
                                 
                                                             | 
                                                        
                    
| 3 | 3. Biweekly | 132 | 
                                                                 
                                    
                                    15%
                                 
                                                             | 
                                                        
                    
| 4 | 4. Once a month | 334 | 
                                                                 
                                    
                                    38%
                                 
                                                             | 
                                                        
                    
| 5 | 5. Other (specify) | 15 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 25992 |