| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, several times in the past six months | 506 | 
                                                                 
                                    
                                    55.7%
                                 
                                                             | 
                                                        
                    
| 2 | Yes, one or twice in the last six months | 139 | 
                                                                 
                                    
                                    15.3%
                                 
                                                             | 
                                                        
                    
| 3 | No | 263 | 
                                                                 
                                    
                                    29%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 8181 |