| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 2 | 
                                    
                                    0.2%
                                 | 
| 2 | Once/Twice a Week | 18 | 
                                    
                                    1.8%
                                 | 
| 3 | Once/Twice a Month | 266 | 
                                    
                                    26.4%
                                 | 
| 4 | Never | 720 | 
                                    
                                    71.6%
                                 | 
| Sysmiss | 1 |