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The Australian Bureau of Statistics takes a Census of Population and Housing ('Census') every five years as required by the Census and Statistics Act 1905. One of the key reasons for undertaking a five-yearly population Census is so that the statistical series on official population estimates are as accurate as possible to inform evidence-based decisions by government, business and the community.
The Estimated Resident Population (ERP) statistics by state and territory are used to inform decisions such as:
Taking a Census regularly directly enables the updating and maintenance of an accurate time series of population estimates. In 2011, Census night was Tuesday 9 August. Following the processing of Census responses into aggregate statistics, the ABS will undertake a program of work to compile and release updated population estimates for states and territories in mid 2012, and subsequently for other disaggregations (e.g. estimates for sub-state geographic areas and for Aboriginal and Torres Strait Islander Australians).
The purposes of this paper are to:
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