| Value | Category | Cases | |
|---|---|---|---|
| 1 | Regularly | 1443 | 
                                                                 
                                    
                                    16.4%
                                 
                                                             | 
                                                        
                    
| 2 | Often | 1381 | 
                                                                 
                                    
                                    15.7%
                                 
                                                             | 
                                                        
                    
| 3 | Sometimes | 1653 | 
                                                                 
                                    
                                    18.8%
                                 
                                                             | 
                                                        
                    
| 4 | Rarely | 1129 | 
                                                                 
                                    
                                    12.8%
                                 
                                                             | 
                                                        
                    
| 5 | Never | 3203 | 
                                                                 
                                    
                                    36.4%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1051 |