3412.0 - Migration, Australia, 2014-15 Quality Declaration 
ARCHIVED ISSUE Released at 11:30 AM (CANBERRA TIME) 30/03/2016   
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Estimated resident population (ERP) by country of birth is recast from 1992 to 2006, final rebased from 2006 to 2011, revised for 2012 and 2013, and preliminary for 2014 and 2015. It may differ to previously published data. See paragraph 9 of the Explanatory Notes for further information.

For any age distribution, the median age is that age which divides the relevant population into two equal parts, half being younger than the value, and half being older than it.