NOTES

FORTHCOMING ISSUES

ISSUE (QUARTER)	Release Date
September 2013	27 March 2014
December 2013	19 June 2014
March 2014	25 September 2014
June 2014	18 December 2014
March 2015	24 September 2015
December 2014	25 June 2015

CHANGES IN THIS ISSUE

NOM estimates up to and including March 2012 are now final. The revision to previously published NOM data for September quarter 2011 was due to a resupply of overseas arrivals and departures data from the Department of Immigration and Border Protection.

This release includes a feature article titled 'Population by Age and Sex, Australia, States and Territories'.


REBUILD OF THE OVERSEAS ARRIVALS AND DEPARTURES SYSTEM

The ABS undertook a rebuild of the Overseas Arrivals and Departures (OAD) system in 2013. The primary aim was to improve the quality of OAD data, given its importance as input to a broad range of statistical collections, including the Net Overseas Migration (NOM) collection and the Estimated Resident Population (ERP) by country of birth collection. A revised time series of OAD data from July 2004 to December 2013, will be released in Overseas Arrivals and Departures - Australia, January 2014 (cat. no. 3401.0), scheduled for release on 11 March 2014. Information about the upcoming changes for OAD will be regularly updated in the Notes Section of the same publication each month prior to release.


NOM IMPROVEMENTS 2013

In 2013, the ABS further improved the quality and supply of final and preliminary NOM statistics. These included improving the quality of input data used in estimating NOM due to a rebuild of the OAD system, which improved preliminary NOM estimation and preliminary ERP. The improvements to preliminary NOM have been introduced in this release. Previously published NOM data for June quarter 2012 to March quarter 2013 are revised. The change to the revision cycle for publishing final NOM from a six monthly to a quarterly revision cycle started with the release of the March 2013 issue of this publication on 26 September 2013. For further information see the feature article 'Further Improvements to Net Overseas Migration Estimation, Dec 2013' and Information Paper with the same title (cat. no. 3412.0.55.002), released on 17 December 2013.

A feature article titled 'The Importance of Passenger Data for Australia's Official Statistics' is also published in this release, highlighting the critical role this data plays in the determination of Australia's ERP.


RECENT AND UPCOMING RELEASES

For information on recent and upcoming Demography releases, and innovative new ways of presenting data, see Technical Note: Recent and Upcoming releases.


INQUIRIES

For further information about these and related statistics, contact the National Information and Referral Service on 1300 135 070 or Michael Giampietro on Canberra (02) 6252 5640.