<Table> <Tr> <Td> </Td> <Td> Sui dynasty </Td> </Tr> <Tr> <Td> </Td> <Td> Eastern Turkic Khaganate </Td> </Tr> <Tr> <Td> </Td> <Td> Western Turkic Khaganate </Td> </Tr> <Tr> <Td> </Td> <Td> Goguryeo </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> Sui dynasty </Td> </Tr> <Tr> <Td> </Td> <Td> Eastern Turkic Khaganate </Td> </Tr> <Tr> <Td> </Td> <Td> Western Turkic Khaganate </Td> </Tr>

What was the population of the tang dynasty in 1200 ce