<Tr> <Td> 1620 </Td> <Td> 800 </Td> <Td> 17,000 </Td> </Tr> <Tr> <Td> 1638 </Td> <Td> 800 </Td> <Td> 40,000 </Td> </Tr> <Tr> <Td> 1680 </Td> <Td> 1,470 </Td> <Td> 17,000 </Td> </Tr> <Tr> <Td> 1749 </Td> <Td> 4,353 </Td> <Td> 10,658 </Td> </Tr>

Who was charged with founding a settlement on the upper rio grande