| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not in past 12 months | 11 | 
                                                                 
                                    
                                    0.8%
                                 
                                                             | 
                                                        
                    
| 2 | Once | 33 | 
                                                                 
                                    
                                    2.4%
                                 
                                                             | 
                                                        
                    
| 3 | Sometimes | 68 | 
                                                                 
                                    
                                    4.9%
                                 
                                                             | 
                                                        
                    
| 4 | Often | 7 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    
| 5 | Doesn't remember | 2 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1279 | 
                                                                 
                                    
                                    91.4%
                                 
                                                             |