To ask Her Majesty’s Government what proportion of population growth in the United Kingdom over the last 10 years has been the result of immigration or the natural increase of the immigrant population.

To ask Her Majesty’s Government whether the proportion of United Kingdom population growth ascribed to international migration in the population projections published by the Office for National Statistics includes future births to migrants already living in the United Kingdom.

To ask Her Majesty’s Government what is the impact on projected population growth of births to migrants already living in the United Kingdom.

To ask Her Majesty’s Government what proportion of the projected population growth in England over the next 25 years would be attributable to immigration if the children of all migrants were also included.

To ask Her Majesty’s Government whether they have any plans for the next publication of population estimates or projections to set out the full impact of immigration, including the natural increase due to immigrants already in the United Kingdom, on the growth of the United Kingdom population.

To ask Her Majesty’s Government on what basis immigration assumptions have been adopted in population estimates published by the Office for National Statistics; how such assumptions have compared against immigration levels actually experienced; and what is the basis for any difference between assumptions and actual levels.

The information requested falls within the responsibility of the UK Statistics Authority. I have asked the Authority to reply.