| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not in past 12 months | 1117 | 
                                    
                                    91.1%
                                 | 
| 2 | Once | 28 | 
                                    
                                    2.3%
                                 | 
| 3 | Sometimes | 61 | 
                                    
                                    5%
                                 | 
| 4 | Often | 20 | 
                                    
                                    1.6%
                                 | 
| 5 | Doesn't remember | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | DK | 0 | |
| Sysmiss | Non applicable | 0 | |
| Sysmiss | RF | 0 | |
| Sysmiss | 114 |