| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always | 158 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    
| 2 | Often | 1959 | 
                                                                 
                                    
                                    27.9%
                                 
                                                             | 
                                                        
                    
| 3 | Sometimes | 3104 | 
                                                                 
                                    
                                    44.1%
                                 
                                                             | 
                                                        
                    
| 4 | Rarely | 1068 | 
                                                                 
                                    
                                    15.2%
                                 
                                                             | 
                                                        
                    
| 5 | Never | 548 | 
                                                                 
                                    
                                    7.8%
                                 
                                                             | 
                                                        
                    
| 99 | Don't know | 196 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 40318 |