| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, several times in the past six months | 78 | 
                                                                 
                                    
                                    61.4%
                                 
                                                             | 
                                                        
                    
| 2 | Yes, one or twice in the last six months | 19 | 
                                                                 
                                    
                                    15%
                                 
                                                             | 
                                                        
                    
| 3 | No | 30 | 
                                                                 
                                    
                                    23.6%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 8962 |