I had a quick look the Australian government statistics webpage and it seems that they avoid this topic like the plague. They list nationalities of immigrants/foreign residents, Aboriginal and Torres Strait Islander population and "other." I also found this breakdown at
http://www.goingrank.com.au/population.htmlOf all person living in Australia, 24% were born elsewhere, and 76% were born in Australia.
The main sources of immigration are:
UK and Ireland 6.35%
New Zealand 1.7%
Italy 1.32%
China 0.95%
Vietnam 0.91%
Former yougoslavia 0.82%
Greece 0.71%
Germany 0.65%
Americas 0.59%
Philippines 0.56%
Netherlands 0.51%
Malaysia 0.48%
India 0.46%
South Africa 0.35%
Other European 4.28%
Other Asian 2.63%
I think that you're looking at a different perspective...