| Value | Category | Cases | |
|---|---|---|---|
| 1 | Often | 3895 | 
                                                                 
                                    
                                    30.1%
                                 
                                                             | 
                                                        
                    
| 2 | Sometimes | 2308 | 
                                                                 
                                    
                                    17.8%
                                 
                                                             | 
                                                        
                    
| 3 | No | 6749 | 
                                                                 
                                    
                                    52.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 19899 |