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Mr. Wallace: To ask the Chancellor of the Exchequer when HM Revenue and Customs will respond to the letters of (a) 18 October 2007 and (b) 22 January 2008 from the hon. Member for Lancaster and Wyre on a constituent, Mr. Stefan Fish. 
Mr. Frank Field: To ask the Chancellor of the Exchequer pursuant to the answer of 4 February 2008, Official Report, columns 834-36W, on migrant workers, what the change has been in the number of the UK born population in employment in each industry sector since 1997. 
As National Statistician, I have been asked to reply to your Parliamentary Question about the UK born population in employment in each industry since 1997. (185665)
The attached table gives the number of working age UK born workers in each industry sector for each year since 1997. It also gives the change in the number of UK born workers in each industry sector, between the second quarter of 1997 and the second quarter of 2007. Comparable estimates are not available for 1998 and 2000.
As with any sample survey, estimates from the LFS are subject to a margin of uncertainty.
|Working age( 1) UK born population, in employment by industry sector( 2) Three months ending June each year, 1997-2007 United Kingdom, not seasonally adjusted|
|(1) Men aged 16-64 and women aged 16-59.|
(2) Industry breakdowns for Standard Industrial Classification 92 (SIC92).
(3) Includes those who did not state their industry.
1. It should be noted that the estimates are grossed to population estimates consistent with those published in Spring 2003 which are significantly lower than the latest population estimates as used in the Labour Market Statistics. 2. Comparable data not available for 1998 and 2000. Source: ONS Labour Force Survey (LFS).
Mr. Bone: To ask the Chancellor of the Exchequer what percentage of job vacancies he estimates were filled by migrant workers from the European Union in the latest period for which figures are available. 
As National Statistician, I have been asked to reply to your Parliamentary Question on the percentage of job vacancies filled by migrant workers from the European Union. (186550)
Information is not available on the percentage of job vacancies filled by individuals whose country of birth was in the European Union (EU).
Mr. Clappison: To ask the Chancellor of the Exchequer (1) how many visitor switchers were taken into account for the purpose of calculating the balance of total international migration to and from the UK in each year since 1991; 
(2) how many asylum seekers were taken into account for the purpose of calculating the balance of total international migration to and from the UK in the years 1997 to 2006 inclusive; and what proportion of net migration these figures represented in each of those years; 
(3) what the level of inward migration from EU A8 countries for the purposes of total international migration statistics to the UK was in (a) each year and (b) each quarter since 1 January 2004. 
As National Statistician, I have been asked to reply to your questions on Total International Migration related issues:
how many visitor switchers were taken into account for the purpose of calculating the balance of total international migration to and from the UK in each year since 1991; (177391)
how many asylum seekers were taken into account for the purpose of calculating the balance of total international migration to and from the UK in the years 1997 to 2006 inclusive; and what proportion of net migration these figures represented in each of those years; (177392)
what the level of inward migration from EU A8 countries for the purpose of Total International Migration statistics to the UK was in (a) each year and (b) each quarter since 1 January 2004. (178332)
Table 1, attached, gives the adjustments made to Total International Migration (TIM) to account for visitor switchers from 1991 to 2006. Visitor switchers are those that intended to come to (or leave) the UK for less than 12 months and then switched to being migrants by staying (or leaving) for more than twelve months; i.e. someone who came as a visitor but switched to a migrant.
Table 2, attached, gives the asylum seeker adjustment made to Total International Migration (TIM) estimates of inflows, outflows, and net-migration from 1997 to 2006. It also gives the corresponding TIM estimates; and shows the asylum seeker adjustments as a percentage of these. As indicated in the table, we do not recommend using the figures on asylum seekers as a proportion of net migration as an indicator.
The asylum seeker adjustments are based on Home Office data but differ from the asylum statistics published by the Home Office in a number of respects. In order to fit with the United Nations recommended definition of an international long-term migrant, which is used in calculating population estimates, the data only include cases where the asylum seeker remained in the UK for more than 12 months. These data will also exclude a number of asylum seekers that are accounted for already in International Passenger Survey (IPS) estimates of migrants. Finally the adjustments include both principal applicants and their dependants whereas HO figures generally exclude dependants.
Estimates of annual inward migration from EU A8 countries for 2004 and 2005 are available in Table 2.2 of the International Migration 2005, Series MN no.32 which can be found on the National Statistics website at:
The 2006 Total International Migration (TIM) estimates of annual inward migration from EU A8 countries (i.e. by country of last residence) are not yet available but are due to be released in May 2008. All 2006 TIM estimates will be produced using revised methods, and these changes will also result in revisions for earlier years. Therefore the 2004 and 2005 estimates currently in the public domain are likely to change slightly. However, estimates of annual inward migration by EU A8 nationals (as opposed to country of last residence referred to above) are available for 2004-2006 and can be found in Table 1 (Citizenship UK) at the following link on the National Statistics website:
Quarterly estimates of inward migration are not available for country of last residence or nationality either on a TIM or IPS basis.
Total International Migration data are the most comprehensive estimates of long-term international migration. They are produced by combining migration data from the IPS, Home Office data on asylum seekers, migration data between the UK and the Irish Republic and adjustments for (migrant and visitor) switchers, i.e. those whose initial length of stay intentions are not realised.
|Table 1: International migration, visitor switcher( 1) adjustment, time series 1991 to 2006( 2) , United Kingdom|
| Notes: 1. A visitor switcher is defined as someone who enters or leaves the UK intending to stay in the destination country for less than a year but who actually stays for a year or longer. Thus inflow indicates the estimate of those who entered the UK as visitors, but who switched to being migrants and stayed a year or more. 2. Several different methods and data sources have been used between 1991 and 2006 to estimate the visitor switcher adjustment. For the years 1991 to 2000, the adjustment is based on visa extension data from the Home Office. For the years 2000 to 2003, the adjustment is based on fixed proportions applied to certain categories of visitors considered most likely to switch and become migrants. From 2004, the adjustment is based on specific questions asked in the International Passenger Survey (IPS) to identify former visitor switchers which is then applied to certain visitor categories. In all cases, the best available data has been used to produce these adjustments. Source: Office for National Statistics.|
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