[holding answer 13 October 2008]: The information requested falls within the responsibility of the UK Statistics Authority. I have asked the authority to reply.Letter from Karen Dunnell, dated October 2008:"As National Statistician, I have been asked to reply to your Parliamentary Question asking how many people in employment in the UK were (a) UK citizens, (b) citizens of other EU states and (c) citizens of non EU states in each year since 1978. (226635)""The attached table gives the number of people in employment for the categories requested, from April-June 1995 to April-June 2008. Comparable data prior to 1995 are not available. The table excludes those whose nationality is not known.""Citizenship is defined as the nationality reported by respondents at the time of the survey.""The estimates are derived from the Labour Force Survey. As with any sample survey, estimates from the LFS are subject to a margin of uncertainty.""The figures in the table are derived from the LFS microdata which are weighted using the official population estimates published in autumn 2007. They are not entirely consistent with the figures published in the monthly Labour Market Statistics First Release which are weighted using more up-to-date population estimates." Employment levels for people aged 16 and over, by nationality, three months ending April to June, 1995 to 2008, United Kingdom, not seasonally adjusted Thousand UK Other EU¹ 401 Non-EU 1995 24,840 470 1996 25,074 397 473 1997 25,478 419 547 1998 25,576 465 600 1999 26,002 452 569 2000 26,256 461 682 2001 26,427 489 725 2002 26,554 480 816 2003 26,741 518 873 2004² 26,860 581 922 2005 27,058 642 963 2006 27,050 732 1,144 2007³ 26,949 989 1,154 20084 27,167 * 1,085 * 1,219 * ¹ Men aged 16-64 and women aged 16-59. ² EU14 comprises Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain and Sweden. ³ A8 comprises Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Slovakia and Slovenia. 4 Rest of world excludes UK, EU14 and A8. 5 Coefficients of Variation have been calculated for the latest period as an indication of the quality of the estimates, as described as follows: Guide to Quality: The Coefficient of Variation (CV) indicates the quality of an estimate, the smaller the CV value the higher the quality. The true value is likely to lie within +/- twice the CV—for example, for an estimate of 200 with a CV of 5 per cent. we would expect the population total to be within the range 180-220. Key Coefficient of Variation (CV) (%) Statistical Robustness * 0 < CV< 5 Estimates are considered precise ** 5 < CV < 10 Estimates are considered reasonably precise *** 10 < CV < 20 Estimates are considered acceptable **** CV = 20 Estimates are considered too unreliable for practical purposes Note: It should be noted that the above estimates exclude people in most types of communal establishment (eg hotels, boarding houses, hostels, mobile home sites etc.) Source: Labour Force Survey.