1344.8.55.002 - ABStract, Statistics News, Australian Capital Territory, April 2010  
ARCHIVED ISSUE Released at 11:30 AM (CANBERRA TIME) 13/04/2010   
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NET OVERSEAS MIGRATION


IMPROVEMENTS TO PRELIMINARY NET OVERSEAS MIGRATION ESTIMATION

In 2007 the Australian Bureau of Statistics (ABS) introduced improved methods for calculating net overseas migration (NOM). It has been used in calculating Australia's official estimated resident population (ERP) since September quarter 2006. Experience in using the new NOM methodology, as well as the subsequent availability of new information, has indicated that it is now possible to make further improvements to the preliminary estimates.

Preliminary NOM data from these improvements was published for the first time on 25 March 2010 in Australian Demographic Statistics, September Quarter 2009 (cat. no. 3101.0). For all quarters of 2008-09 the already published preliminary NOM estimates were replaced with new preliminary NOM estimates based on these improvements. September quarter 2009 preliminary NOM estimates have been based on these improvements and published for the first time.

Final NOM estimates for 2007-08 were also released on 25 March 2010 in Australian Demographic Statistics, September Quarter 2009 (cat. no. 3101.0).

An Information Paper: Improving Net Overseas Migration Estimation (cat. no. 3412.0.55.001) was released on 12 March 2010. It reports on the improvements made by the ABS to the quality of Australia's NOM estimation. It discusses changes made to the methodology and the examination of the source data used to estimate NOM.


New Data Available

Interstate migration data

A time series of interstate migration data from 2002 onwards is available electronically as a data cube (in Supertable format) from the Downloads tab of Migration Australia, 2007-08 (cat. no. 3412.0) on the ABS website. As new data is now available this was updated for the financial year 2008-09 and released on the 25 March 2010.

Net overseas migration data

A time series of NOM data from 2004 onwards, based on the improved methodology, is available electronically as a data cube (in Supertable format) from the Downloads tab of Migration Australia, 2007-08 (cat. no. 3412.0) on the ABS website. As new data is now available this was revised with final data for the financial year 2007-08 and updated with preliminary data for the financial year 2008-09 and released on the 25 March 2010.