2006
The 2006 census was conducted on the night of Tuesday, 8 August. 19,855,288 people were counted in Australia on census night. Of those 455,031 people identified as Indigenous Australians. There were 206,358 overseas visitors. For the first time, the territories of Cocos (Keeling) Islands were included in the 2006 census, following the enactment of the Territories Law Reform Act 1992.
The 2006 census contained 60 questions, all of which were compulsory except those relating to religion and household census data retention. The census cost around A$300 million to conduct.
Read more about this topic: Census In Australia