<Tr> <Td> 1969 </Td> <Td> Bosman, Dick Dick Bosman </Td> <Td> 2.19 </Td> <Td> Washington Senators </Td> <Td> Palmer, Jim Jim Palmer </Td> <Td> 2.34 </Td> <Td> </Td> </Tr> <Tr> <Td> 1970 </Td> <Td> Segui, Diego Diego Seguí </Td> <Td> 2.56 </Td> <Td> Oakland Athletics </Td> <Td> Palmer, Jim Jim Palmer </Td> <Td> 2.71 </Td> <Td> </Td> </Tr> <Tr> <Td> 1971 </Td> <Td> Blue, Vida Vida Blue </Td> <Td> 1.82 </Td> <Td> Oakland Athletics </Td> <Td> Wood, Wilbur Wilbur Wood </Td> <Td> 1.91 </Td> <Td> </Td> </Tr> <Tr> <Td> 1972 </Td> <Td> Tiant, Luis Luis Tiant </Td> <Td> 1.91 </Td> <Td> Boston Red Sox </Td> <Td> Perry, Gaylord Gaylord Perry </Td> <Td> 1.92 </Td> <Td> </Td> </Tr>

Who has the best era in baseball history