| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Less than half hour | 1641 | 4864473 | 
                                                                 
                                    
                                    56.6%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 2 | Half an hour | 853 | 2580925 | 
                                                                 
                                    
                                    30%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 3 | More than one hour | 364 | 1110899 | 
                                                                 
                                    
                                    12.9%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 8 | DK | 0 | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 99 | Not stated | 12 | 35861 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                            
                        
                        
                            
                    
| Sysmiss | 8046 | 23175760 |