| Value | Category | Cases | |
|---|---|---|---|
| 1 | At least every week | 0 | 
                                    
                                    0%
                                 | 
| 2 | Approximately every two weeks | 1 | 
                                    
                                    100%
                                 | 
| 3 | Once a month | 0 | 
                                    
                                    0%
                                 | 
| 4 | Less than once a month | 0 | 
                                    
                                    0%
                                 | 
| 5 | Never | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 375 |