<Tr> <Td> 1980 </Td> <Td> 2789.5 </Td> <Td> 5161.7 </Td> <Td> 227.225 </Td> <Td> 12276 </Td> <Td> 22716 </Td> </Tr> <Tr> <Td> 1981 </Td> <Td> 3128.4 </Td> <Td> 5291.7 </Td> <Td> 229.466 </Td> <Td> 13633 </Td> <Td> 23061 </Td> </Tr> <Tr> <Td> 1982 </Td> <Td> 3255.0 </Td> <Td> 5189.3 </Td> <Td> 231.664 </Td> <Td> 14051 </Td> <Td> 22400 </Td> </Tr> <Tr> <Td> </Td> <Td> 3536.7 </Td> <Td> 5423.8 </Td> <Td> 233.792 </Td> <Td> 15128 </Td> <Td> 23199 </Td> </Tr>

When did the united states became the largest economy