Statistics

Australian Bureau of Statistics (ABS)
[http://www.abs.gov.au/]
"The ABS provides statistics on a wide range of economic and social matters, serving government, business and the general population"

For example:

4102.0 - Australian Social Trends, March 2009
More de facto relationships, women still do most housework, more energy use at home: ABS
[http://www.abs.gov.au/ausstats/abs@.nsf/Latestproducts/4102.0Media%20Release1March%202009?opendocument&tabname=Summary&prodno=4102.0&issue=March%202009&num=&view=]

4102.0 - Australian Social Trends, 2008 WOMEN'S INCOMES
[http://www.abs.gov.au/AUSSTATS/abs@.nsf/Lookup/4102.0Chapter8002008]