Please note: to ensure that data are not doubled please check the state or territory variable is used in your extraction. If the variable is not used an individual will be counted twice, once within the state/territory and once within Australia.
Overseas migration estimates are final for years up to and including 2010 and preliminary for 2010-11, 2011 and 2011-12. See paragraphs 9–10 of the Explanatory Notes for further information.
This time series is based on the improved methodology (12/16 month rule) from 2004 onwards. It has been used in calculating Australia's official estimated resident population (ERP) since September quarter 2006.
NOM arrivals are all overseas arrivals that contribute to net overseas migration (NOM). It is the number of incoming international travellers who stay in Australia for 12 months or more, who are not currently counted within the population, and are then added to the population. Under the current method for estimating final net overseas migration this term is based on a traveller's actual duration of stay or absence using the '12/16 month rule'.
NOM departures are all overseas departures that contribute to net overseas migration (NOM). It is the number of outgoing international travellers (Australian residents and long term visitors to Australia) who leave Australia for 12 months or more, who are currently counted within the population, and are then subtracted from the population. Under the current method for estimating final net overseas migration this term is based on a traveller's actual duration of stay or absence using the '12/16 month rule'.
For further information see paragraphs 28 to 44 of the Explanatory Notes and the Technical Note: '12/16 month rule' Methodology for Calculating Net Overseas Migration from September quarter 2006 and onwards released with this publication.
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