<P> Nominal GDP Sector Composition, 2016 (in millions of dollars) at current prices . </P> <Table> <Tr> <Th> No </Th> <Th> Country / Economy </Th> <Th> Nominal GDP </Th> <Th> Agri . </Th> <Th> Indus . </Th> <Th> Serv . </Th> </Tr> <Tr> <Td> </Td> <Td> United States </Td> <Td> 18,624,450 </Td> <Td> 204,868.95 </Td> <Td> 3,613,143.3 </Td> <Td> 14,806,437.75 </Td> </Tr> <Tr> <Td_colspan="6"> * Percentages from CIA World Factbook </Td> </Tr> </Table> <Tr> <Th> No </Th> <Th> Country / Economy </Th> <Th> Nominal GDP </Th> <Th> Agri . </Th> <Th> Indus . </Th> <Th> Serv . </Th> </Tr> <Tr> <Td> </Td> <Td> United States </Td> <Td> 18,624,450 </Td> <Td> 204,868.95 </Td> <Td> 3,613,143.3 </Td> <Td> 14,806,437.75 </Td> </Tr>

How have natural resources created financial wealth for the united states