<Tr> <Td> United States </Td> <Td> 488,100 </Td> <Td> 446,300 </Td> <Td> 501,100 </Td> <Td> 553,000 </Td> <Td> 609,900 </Td> </Tr> <Tr> <Td> Singapore </Td> <Td> 285,700 </Td> <Td> 266,100 </Td> <Td> 339,800 </Td> <Td> 372,100 </Td> <Td> 395,800 </Td> </Tr> <Tr> <Td> Japan </Td> <Td> 721,000 </Td> <Td> 685,300 </Td> <Td> 324,400 </Td> <Td> 326,500 </Td> <Td> 335,500 </Td> </Tr> <Tr> <Td> Malaysia </Td> <Td> 152,100 </Td> <Td> 166,000 </Td> <Td> 278,100 </Td> <Td> 324,500 </Td> <Td> 338,800 </Td> </Tr>

How has tourism changed over time in australia