| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 1 | Do 10 | 
                                    
                    
                        | 2 | 11-20 | 
                                    
                    
                        | 3 | 21-50 | 
                                    
                    
                        | 4 | 51-100 | 
                                    
                    
                        | 5 | 101-200 | 
                                    
                    
                        | 6 | 201-500 | 
                                    
                    
                        | 7 | 501 i vise | 
                                    
                    
                        | 57 |  | 
                                    
                    
                        | 77 | NZ | 
                                    
                    
                        | 88 | BO | 
                                    
                    
                        | Sysmiss |  | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.