<Tr> <Td> 5 </Td> <Td> Milwaukee </Td> <Td> WI </Td> <Td> </Td> <Td> 1,760,268 </Td> <Td> 1,913,000 </Td> <Td> 157,732 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> Ottawa--Gatineau </Td> <Td> ON - QC </Td> <Td> </Td> <Td> 1,451,415 </Td> <Td> 1,596,556 </Td> <Td> 145,141 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Grand Rapids </Td> <Td> MI </Td> <Td> </Td> <Td> 1,327,366 </Td> <Td> 1,530,000 </Td> <Td> 202,634 </Td> </Tr> <Tr> <Td> 8 </Td> <Td> Buffalo </Td> <Td> NY </Td> <Td> </Td> <Td> 1,203,493 </Td> <Td> 1,040,400 </Td> <Td> - 163,093 </Td> </Tr>

What time zone is most of the great lakes region in