<Tr> <Td> 1999 </Td> <Td> 846.8 </Td> <Td> 27,885 </Td> <Td> 5.2% </Td> <Td> 1.7% </Td> <Td> 7.6% </Td> <Td> 89.3% </Td> </Tr> <Tr> <Td> 2000 </Td> <Td> 910.9 </Td> <Td> 29,723 </Td> <Td> 5.2% </Td> <Td> 2.7% </Td> <Td> 6.8% </Td> <Td> 80.7% </Td> </Tr> <Tr> <Td> 2001 </Td> <Td> 948.2 </Td> <Td> 30,615 </Td> <Td> 1.8% </Td> <Td> 2.5% </Td> <Td> 7.2% </Td> <Td> 81.8% </Td> </Tr> <Tr> <Td> 2002 </Td> <Td> 991.7 </Td> <Td> 31,676 </Td> <Td> 3.0% </Td> <Td> 2.3% </Td> <Td> 7.7% </Td> <Td> 79.9% </Td> </Tr>

What is canada's main export to the us