Presumably the BBC means “non-descript white” in the sidebar on ancestry here, because the last time I looked the rest of the people listed were also Australians:
“Total population: 21 million
Australian: 6.7m (38.7%)
English: 6.4m (36.5%)
Irish: 1.9m (11%)
Italian: 800,000 (4.6%)
German: 742,000 (4.3%)
Chinese: 557,000 (3.2%)
Greek: 376,000 (2.2%)
Dutch: 269,000 (1.5%)
Lebanese: 162,000 (0.9%)
Indian: 157,000
Vietnamese: 157,000 (0.9%)”
Note that this is an ancestry table, not an immigration table, where it might be appropriate to distinguish between Australian-born and others.
Last time I looked, Aborigines made up 2.4% of Australia’s population. Why on earth have they been ignored?