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|Table B: Gross value added annual percentage growth rate, 1999 to 2006|
Mr. Evennett: To ask the Chancellor of the Exchequer what his most recent estimate is of the number of migrant workers there were in (a) Bexleyheath and Crayford and (b) the London Borough of Bexley in each of the last three years. 
As National Statistician, I have been asked to reply to your Parliamentary Question on what the most recent estimate is of the number of migrant workers in (a) Bexleyheath and Crayford, (b) the London Borough of Bexley in each of the last three years. (191002)
The Office for National Statistics compiles statistics on migrant workers for local areas from the Annual Population Survey (APS). The National Statistics method for estimating the number of migrant workers employed in the UK is routinely based on the number of people at a given time who were born abroad, are of working age (16-64 for men, 16-59 for women), and in employment. This question has been answered on this basis. It means, for example, that some people who are UK nationals will be included in the total of foreign born and that people who are working but are above state pension age are not included.
APS estimates at this detailed level are only available consistent with population estimates published in February and March 2003 and are not comparable with the estimates published in the Labour Market Statistics First Release on 13 February 2008, which are based on latest population estimates.
The table attached, shows the numbers of working age in employment who were not born in the UK and were resident in Bexleyheath and Crayford Parliamentary constituency and the London Borough of Bexley, for the twelve month periods ending in June for 2005, 2006, and 2007 from the APS. The July to June 2007 APS dataset is the most recent which is currently available.
When interpreting these figures, it is important to bear in mind that the APS is not designed to cover everyone who is present in the UK. The survey may undercount the numbers of people who were born overseas. The reasons are set out in the table footnote.
As these estimates are for a subset of the population in small geographical areas they are based on small sample sizes, and are therefore subject to large margins of uncertainty.
|Number of non-UK born persons in employment in Bexleyheath and Crayford and the London borough of Bexley in the last three year|
|Migrant workers (thousand)( 1)|
|12 months ending:||Bexleyheath and Crayford||London borough of Bexley|
|(1) Includes males aged 16 to 64 and females aged 16 to 59. Does not include respondents who did not answer the question on country of birth. Estimates are subject to sampling variability.|
It should also be noted that the country of birth question in the APS gives an undercount because:
it excludes certain people who have been resident in the UK for less than six months.
it excludes students in halls who do not have a UK resident parent.
it excludes people in most other types of communal establishments (e.g. hotels, boarding houses, hostels, mobile home sites, etc.).
it is grossed to population estimates which exclude migrants staying for less than 12 months.
microdata are grossed to population estimates consistent with those published in spring 2003 which are significantly lower than the latest population estimates.
Annual Population Survey
Mr. Frank Field: To ask the Chancellor of the Exchequer how many couple households (a) with and (b) without dependent children there were in each year since 1992; how many and what proportion of these in each category were couples of working age where (i) one and (ii) both were (A) in and (B) out of work. 
As National Statistician, I have been asked to reply to your Parliamentary Question on how many couple households (a) with and (b) without dependent children there were in each year since 1992; how many and what proportion of these were couples of working age where (i) one and (ii) both were (A) in and (B) out of work in each category. (191324)
This question has been answered on a family basis rather than household basis because more than one couple can live in a household. In addition figures provided are for working age couples in the United Kingdom, that is where both partners are of working-age (men aged 16-64 and women aged 16-59).
Out of work has been interpreted to include those unemployed or economically inactive.
Dependent children are defined as children under 16 years of age and those aged 16-18 who have never-married and are in full time education.
The information is given in the table attached. The figures in the table are estimates from the Labour Force Survey (LFS) for the three month period ending in June of each year for 1997, 1999 and 2001 to 2007. Comparable estimates for 1992-1996, 1998 and 2000 are not currently available.
The LFS is a sample survey covering over 52,000 households in the United Kingdom in each three month period. As with any sample survey, estimates from the Labour Force Survey are subject to a margin of uncertainty.
|Number and percentage of working age( 1) couples with and without dependent children( 2) by economic status, United Kingdom, April to June 1997 to 2007 not seasonally adjusted|
|Thousand and percentage( 3)|
|Total( 4)||Both partners employed||Both partners not employed||One employed and one not employed||Total||Both partners employed||Both partners not employed||One employed and one not employed|
|(1) Both members of the couple are of working age (men aged 16-64 and women aged 16-59).|
(2) Dependent children are those aged under 16 and those aged or 16-18 who have never married and are in full-time education.
(3) When calculating percentages, the couples with unknown economic status are excluded.
(4) Includes couples with unknown economic status of one or both members.
(5) Comparable estimates for 1998 and 2000 are not currently available.
(6) Couples without dependent children includes couples with no children
As with any sample survey, estimates from the Labour Force Survey are subject to a margin or uncertainty. Estimates are weighted to the population estimates published by ONS in February and March 2003.
ONS Labour Force Survey.
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