| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 842 | 
                                                                 
                                    
                                    24.9%
                                 
                                                             | 
                                                        
                    
| 1 | Yes, more than once in the last six months | 1795 | 
                                                                 
                                    
                                    53%
                                 
                                                             | 
                                                        
                    
| 2 | Yes, once in the last six months | 750 | 
                                                                 
                                    
                                    22.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 5702 |