| Value | Category | Cases | |
|---|---|---|---|
| 1 | Regularly | 1659 | 
                                                                 
                                    
                                    17%
                                 
                                                             | 
                                                        
                    
| 2 | Often | 1874 | 
                                                                 
                                    
                                    19.1%
                                 
                                                             | 
                                                        
                    
| 3 | Sometimes | 2302 | 
                                                                 
                                    
                                    23.5%
                                 
                                                             | 
                                                        
                    
| 4 | Rarely | 1499 | 
                                                                 
                                    
                                    15.3%
                                 
                                                             | 
                                                        
                    
| 5 | Never | 2453 | 
                                                                 
                                    
                                    25.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 73 |