The UK issued National Insurance numbers to 713,000 overseas nationals in the year to April 2007.
That number - which includes those who may be in the UK for a short time - is more than twice the amount issued to non-UK nationals four years earlier.
The figures include self-employed people as well as the employed workers who are counted in other surveys.
The number from new EU counties working in the UK for the first time rose to 321,000 from 277,000 a year earlier.
news.bbc.co.uk/1/hi/uk_politics/6913296.stm
COUNTRIES OF ORIGIN
Poland: 222,000
India: 49,000
That number - which includes those who may be in the UK for a short time - is more than twice the amount issued to non-UK nationals four years earlier.
The figures include self-employed people as well as the employed workers who are counted in other surveys.
The number from new EU counties working in the UK for the first time rose to 321,000 from 277,000 a year earlier.
news.bbc.co.uk/1/hi/uk_politics/6913296.stm
COUNTRIES OF ORIGIN
Poland: 222,000
India: 49,000