1 food wholesaling and retailing 12 31 244 6total fiber system 6156 9food service 3 3334 4wholesaling 0 441 3transportation distribution 547 1nonfoods 7168 3food processing manufacturing 4 2422 8input industries 773 8farming share of gdp value added to billion by the 2001 types wholesalers merchant primarily engaged in buying grocery products reselling retailers institutions other businesses own manufacturers sales branches operations market 2 wholesale agents brokers operators who buy sell as representatives others for a commission don not general line handle broad groceries examples supervalu fleming sisco specialty major items frozen foods bakery dairy poultry fish meat fresh fruits vegetables