<Tr> <Td> KU Leuven </Td> <Td> 5 </Td> </Tr> <Tr> <Td> KAIST </Td> <Td> 6 </Td> </Tr> <Tr> <Td> University of Washington </Td> <Td> 7 </Td> </Tr> <Tr> <Td> University of Michigan System </Td> <Td> 8 </Td> </Tr>

What university is ranked number 1 in the us