To ask the Chancellor of the Exchequer what (a) medium and (b) long-term assumptions about net immigration into the UK have been made in each of the population projections produced by the Office for National Statistics since 1990; and what has been the outcome in each year over that period. 
National population projections are produced by the Government Actuary's Department at the request of the Registrars General of England and Wales, Scotland and Northern Ireland. New projections are normally prepared every second year. The 2000-based, and earlier, projections were prepared before 2001 Census results became available. The interim 2001-based projections take preliminary account of the results of the 2001 Census. A 2002-based set of projections, taking account of the further Census related data which have and will become available during 2003, is provisionally scheduled for publication in the autumn.The previously published medium and long-term assumptions of annual net migration to the United Kingdom made in national population projections since 1990 are given in Table A as follows.
|Table A: Assumed medium and long-term annual net migration to the United Kingdom in national population projections|
|1991-based and 1992-based projections||50,000 each year from 1997–98 to 2006–07 reducing to zero each year from 2015–16|
|1994-based projections||50,000 each year from 1999–2000 to 2008–09 reducing to zero each year from 2018–19|
|1996-based projections||65,000 each year from 1998–99|
|1998-based projections||95,000 each year from 2001–02|
|2000-based projections||135,000 each year from 2002–03|
|Interim 2001-based projections||100,000 each year from 2002–03|
Government Actuary's Department
The Office for National Statistics have published an interim revised series of net international migration for 1992 to 2001 that takes preliminary account of the 2001 Census results. The previously published figures are given in Table B as follows. Further revisions to the international migration series will be published in the coming weeks. These revisions will take account of further research.
Table B: Interim revised international migration estimates— 1992–2001
Net migration to the United Kingdom
Office for National Statistics