| Value | Category | Cases | |
|---|---|---|---|
| 1 | Regularly | 1225 | 
                                                                 
                                    
                                    12.6%
                                 
                                                             | 
                                                        
                    
| 2 | Often | 1400 | 
                                                                 
                                    
                                    14.4%
                                 
                                                             | 
                                                        
                    
| 3 | Sometimes | 1840 | 
                                                                 
                                    
                                    19%
                                 
                                                             | 
                                                        
                    
| 4 | Rarely | 1475 | 
                                                                 
                                    
                                    15.2%
                                 
                                                             | 
                                                        
                    
| 5 | Never | 3760 | 
                                                                 
                                    
                                    38.8%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 160 |