| Value | Category | 
                                    
                    
                        | 1 | Crafts/Small industry | 
                                    
                    
                        | 2 | Services | 
                                    
                    
                        | 3 | Sales/Trade/Food & Drink | 
                                    
                    
                        | 4 | Agriculture/Fishing | 
                                    
                    
                        | 99 | Not in list  (specify) | 
                                    
                    
                        | 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.