Migration Needed To Stop Australia's Population Shrinking
Australian Population By goingrank.com.au (2015)
The average number of persons per household decreased from 3.31 in 1971 to 2.64 in 2001 due to a change in social attitudes leading to a reduction in the size of families.
The average family has 1.76 children, well below population replacement, 22% of adults will never have children and 16.2% have only one child.
Marital figures for 2001 show 6.1 marriages per 1000 people. Median age for brides is 28.1 years and for bridegrooms, 30.2 years. 44% of men and 42% of women will never marry.
Of the world's population, 44% now live in countries with births below population replacement.