<Tr> <Td> Nakhon Phanom </Td> <Td> 373,000 </Td> <Td> 7,100 </Td> <Td> 224 </Td> <Td> 600 </Td> <Td> 49 </Td> </Tr> <Tr> <Td> Mukdahan </Td> <Td> 391,000 </Td> <Td> 7,600 </Td> <Td> 240 </Td> <Td> 610 </Td> <Td> 52 </Td> </Tr> <Tr> <Td> Pakse </Td> <Td> 545,000 </Td> <Td> 9,700 </Td> <Td> 306 </Td> <Td> 560 </Td> <Td> 67 </Td> </Tr> <Tr> <Td> Stung Treng </Td> <Td> 635,000 </Td> <Td> 13,100 </Td> <Td> 413 </Td> <Td> 650 </Td> <Td> 90 </Td> </Tr>

What is the largest river in southeast asia