<Tr> <Td> 9 </Td> <Td> El Salvador </Td> <Td> 57,285 </Td> <Td> 2017 </Td> </Tr> <Table> <Tr> <Th> Rank </Th> <Th> Country </Th> <Th> GDP (nominal, Peak Year) millions of USD </Th> <Th> Peak Year </Th> </Tr> <Tr> <Td> </Td> <Td> United States </Td> <Td> 19,417,144 </Td> <Td> 2017 </Td> </Tr> <Tr> <Td> </Td> <Td> Canada </Td> <Td> 1,842,627 </Td> <Td> 2013 </Td> </Tr> <Tr> <Td> </Td> <Td> Mexico </Td> <Td> 1,298,404 </Td> <Td> 2014 </Td> </Tr> <Tr> <Td>--</Td> <Td> Puerto Rico </Td> <Td> 103,135 </Td> <Td> 2015 </Td> </Tr> <Tr> <Td> </Td> <Td> Cuba </Td> <Td> 87,133 </Td> <Td> 2015 </Td> </Tr> <Tr> <Td> 5 </Td> <Td> Dominican Republic </Td> <Td> 76,850 </Td> <Td> 2017 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> Guatemala </Td> <Td> 70,943 </Td> <Td> 2017 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Costa Rica </Td> <Td> 59,796 </Td> <Td> 2017 </Td> </Tr> <Tr> <Td> 8 </Td> <Td> Panama </Td> <Td> 59,486 </Td> <Td> 2017 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> El Salvador </Td> <Td> 27,548 </Td> <Td> 2017 </Td> </Tr> </Table> <Tr> <Th> Rank </Th> <Th> Country </Th> <Th> GDP (nominal, Peak Year) millions of USD </Th> <Th> Peak Year </Th> </Tr> <Tr> <Td> </Td> <Td> United States </Td> <Td> 19,417,144 </Td> <Td> 2017 </Td> </Tr>

Which of the following geographic regions is not part of canada or the united states