| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 0 | None | 2262 | 2161 | 
                                                                 
                                    
                                    69.3%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 1 | once or twice | 384 | 423 | 
                                                                 
                                    
                                    13.6%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 2 | 3 to 10 times | 322 | 360 | 
                                                                 
                                    
                                    11.5%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 3 | more than 10 times | 147 | 167 | 
                                                                 
                                    
                                    5.4%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 9 | Don't know/No answer | 3 | 9 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                            
                        
                        
                            
                    
| Sysmiss | 4 | 2 |