<Tr> <Td> 8 </Td> <Td> Muang Xai </Td> <Td> Oudomxay </Td> <Td> 25 000 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> Vang Vieng </Td> <Td> Vientiane </Td> <Td> 25 000 </Td> </Tr> <Tr> <Td> 10 </Td> <Td> Muang Pakxan </Td> <Td> Bolikhamsai </Td> <Td> 21 967 </Td> </Tr> <P> The people of Laos are often considered by their altitudinal distribution (lowlands, midlands and upper high lands) as this approximates ethnic groups . </P>

What type of government do both laos and vietnam have