Let me refer back to the study title:

Richard Lynn, "Race Differences in Intelligence: An Evolutionary Analysis" 2006 Table 16.2 (indigenous populations)

Intelligence in an IQ test cannot be determined with individuals that cannot even read or understand our society.

As for your who question, why comment on native Australians when you know nothing about them?

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"When a victim seeks justice, it is known as terrorism" - Osama Bin Laden, 2002