<Tr> <Th> 1960 </Th> <Td> 1,226,793 </Td> <Td> + 44.9% </Td> </Tr> <Tr> <Th> 1970 </Th> <Td> 1,612,525 </Td> <Td> + 31.4% </Td> </Tr> <Tr> <Th> 1980 </Th> <Td> 2,005,477 </Td> <Td> + 24.4% </Td> </Tr> <Tr> <Th> 1990 </Th> <Td> 2,441,873 </Td> <Td> + 21.8% </Td> </Tr>

How far is chihuahua mexico from the us border