| Value | Category | Cases | |
|---|---|---|---|
| -888 | Other: specify | 1 | 
                                    
                                    0.9%
                                 | 
| 1 | Daily | 94 | 
                                    
                                    81.7%
                                 | 
| 2 | Once a week | 4 | 
                                    
                                    3.5%
                                 | 
| 3 | Twice a month | 4 | 
                                    
                                    3.5%
                                 | 
| 4 | Monthly | 10 | 
                                    
                                    8.7%
                                 | 
| 5 | As necessary | 2 | 
                                    
                                    1.7%
                                 | 
| Sysmiss | 16 |