| Value | Category | Cases | |
|---|---|---|---|
| 1 | REGULARLY | 243 | 
                                                                 
                                    
                                    2.4%
                                 
                                                             | 
                                                        
                    
| 2 | SOMETIMES | 2338 | 
                                                                 
                                    
                                    22.8%
                                 
                                                             | 
                                                        
                    
| 3 | RARELY | 3075 | 
                                                                 
                                    
                                    30%
                                 
                                                             | 
                                                        
                    
| 4 | NEVER | 4581 | 
                                                                 
                                    
                                    44.7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 7818 |