| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 155 | 
                                                                 
                                    
                                    12.5%
                                 
                                                             | 
                                                        
                    
| 1 | Sometimes | 642 | 
                                                                 
                                    
                                    51.8%
                                 
                                                             | 
                                                        
                    
| 2 | Often | 425 | 
                                                                 
                                    
                                    34.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 11 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    |
| d | DK | 5 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    
| r | RF | 2 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             |