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Net migration to UK 'underestimated' by nearly 350,000 Net migration to UK 'underestimated' by nearly 350,000
(35 minutes later)
The net flow of migrants into the UK over a 10-year period was underestimated by nearly 350,000, the Office for National Statistics says.The net flow of migrants into the UK over a 10-year period was underestimated by nearly 350,000, the Office for National Statistics says.
It says the International Passenger Survey, which provided initial estimates, missed large numbers of those migrants from eight countries that joined the EU in 2004.It says the International Passenger Survey, which provided initial estimates, missed large numbers of those migrants from eight countries that joined the EU in 2004.
This underestimate went on until 2008, an ONS review found.This underestimate went on until 2008, an ONS review found.
Net migration from 2001-2011 is said to be 346,000 higher than was thought.Net migration from 2001-2011 is said to be 346,000 higher than was thought.
The ONS review looked into the quality of migration estimates, based largely on the International Passenger Survey (IPS) - a system designed to collect information about passengers entering and leaving the UK.
It found some citizens coming into the UK from the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Slovakia and Slovenia had not been counted.
This was partly due to the fact IPS interviews focused on major airports such as Heathrow and Gatwick instead of the regional hubs which were increasingly being used by migrants, the ONS said.
Net migration is the number of people moving to the UK minus the number of those leaving.