| Value | Category | Cases | |
|---|---|---|---|
| -9 | DK | 0 | 
                                    
                                    0%
                                 | 
| 1 | Daily | 18 | 
                                    
                                    8.5%
                                 | 
| 2 | Weekly | 121 | 
                                    
                                    56.8%
                                 | 
| 3 | Fortnightly | 19 | 
                                    
                                    8.9%
                                 | 
| 4 | Monthly | 43 | 
                                    
                                    20.2%
                                 | 
| 5 | Quarterly | 2 | 
                                    
                                    0.9%
                                 | 
| 6 | Semi-annually | 1 | 
                                    
                                    0.5%
                                 | 
| 7 | Yearly | 1 | 
                                    
                                    0.5%
                                 | 
| 8 | None | 8 | 
                                    
                                    3.8%
                                 | 
| Sysmiss | 1865 |