The Asianisation of Australia: volume 2, part 1, section 5
It is a fact, well-known by the Department of Immigration , that departures of European migrants (i.e. those who migrate to Australia, but then later leave) far outweigh departing Asian migrants. Thus, when looking at immigration statistics, in order to ascertain the real increase in the Australian population, it pays to look not just at the plain immigration figures, but at the immigration and emigration figures, to see the real situation of "net immigration" (i.e. arrival numbers minus departure numbers). Net immigration gives us a more accurate insight into the ethnic proportions of the population increase brought about by immigration.
The Asianisation of Australia:
Statistics (Immigration, Ethnicity, and Trade) (Volume 2)
Australian Nationalism Information Database - www.ausnatinfo.angelfire.com