<P> The following is a list of the exports of the United States . </P> <P> Data is for 2012, in millions of United States dollars, as reported by The Observatory of Economic Complexity . Currently the top thirty exports are listed . </P> <Table> <Tr> <Th> #</Th> <Th> Product </Th> <Th> Value </Th> </Tr> <Tr> <Td> </Td> <Td> Cars </Td> <Td> 53,390 </Td> </Tr> <Tr> <Td> </Td> <Td> Refined Petroleum </Td> <Td> 51,929 </Td> </Tr> <Tr> <Td> </Td> <Td> Planes, Helicopters, and Spacecraft </Td> <Td> 39,630 </Td> </Tr> <Tr> <Td> </Td> <Td> Pharmaceuticals </Td> <Td> 37,876 </Td> </Tr> <Tr> <Td> </Td> <Td> Gas turbines </Td> <Td> 28,953 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> Gold </Td> <Td> 27,154 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Soybeans </Td> <Td> 23,665 </Td> </Tr> <Tr> <Td> 8 </Td> <Td> Medical instruments </Td> <Td> 19,784 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> Integrated Circuits </Td> <Td> 19,353 </Td> </Tr> <Tr> <Td> 10 </Td> <Td> Computers </Td> <Td> 19,310 </Td> </Tr> <Tr> <Td> 11 </Td> <Td> Delivery Trucks </Td> <Td> 18,872 </Td> </Tr> <Tr> <Td> 12 </Td> <Td> Human or Animal Blood </Td> <Td> 18,865 </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Aircraft parts </Td> <Td> 17,013 </Td> </Tr> <Tr> <Td> 14 </Td> <Td> Coal </Td> <Td> 16,277 </Td> </Tr> <Tr> <Td> 15 </Td> <Td> Telephones </Td> <Td> 13,479 </Td> </Tr> <Tr> <Td> 16 </Td> <Td> Valves </Td> <Td> 10,677 </Td> </Tr> <Tr> <Td> 17 </Td> <Td> Corn </Td> <Td> 10,236 </Td> </Tr> <Tr> <Td> 18 </Td> <Td> Orthopaedic Appliances </Td> <Td> 10,100 </Td> </Tr> <Tr> <Td> 19 </Td> <Td> Scrap Iron </Td> <Td> 9,036 </Td> </Tr> <Tr> <Td> 20 </Td> <Td> Large Construction Vehicles </Td> <Td> 8,507 </Td> </Tr> <Tr> <Td> 21 </Td> <Td> Liquid Pumps </Td> <Td> 8,272 </Td> </Tr> <Tr> <Td> 22 </Td> <Td> Machinery Having Individual Functions </Td> <Td> 8,178 </Td> </Tr> <Tr> <Td> 23 </Td> <Td> Chemical Analysis Instruments </Td> <Td> 8,128 </Td> </Tr> <Tr> <Td> 24 </Td> <Td> Centrifuges </Td> <Td> 7,993 </Td> </Tr> <Tr> <Td> 25 </Td> <Td> Wheat </Td> <Td> 7,843 </Td> </Tr> <Tr> <Td> 26 </Td> <Td> Combustion Engines </Td> <Td> 7,771 </Td> </Tr> <Tr> <Td> 27 </Td> <Td> Insulated wire </Td> <Td> 7,651 </Td> </Tr> <Tr> <Td> 28 </Td> <Td> Ethylene Polymers </Td> <Td> 7,579 </Td> </Tr> <Tr> <Td> 29 </Td> <Td> Air Pumps </Td> <Td> 7,317 </Td> </Tr> <Tr> <Td> 30 </Td> <Td> Tractors </Td> <Td> 6,931 </Td> </Tr> </Table> <Tr> <Th> #</Th> <Th> Product </Th> <Th> Value </Th> </Tr>

What are some major exports of the united states
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