NISRA produce estimates for long-term international migration, defined as persons who change residence for a year or more, from various administrative data sources.
The latest official migration estimates relate to the period mid-2010 to mid-2011 and were released as part of the 2011 mid-year population estimates on 4th October 2012. Further information from administrative data sources are available up to 2011 (where available June 2012).
The latest available report relates to 2009. The migration report includes an estimate of the A8 stock population in Northern Ireland for 2007-09.