Melbourne, Sep 23: Indian student immigration to Australia was attributed as a major cause for the rise in population, which would soon touch 22 million.
Bureau of Statistics said Australia's annual net migration in the first three months of 2009 increased to 278,000 from 100,000 five years ago.
The annual population growth was estimated at 439,000 with Melbourne
expanding by 1700 people per week.
Government figures at the end of July 2009 showed that in five years, total international student numbers rose from 288,400 to 547,663.