The information requested falls within the responsibility of the UK Statistics Authority. I have asked the authority to reply.Letter from Karen Dunnell, dated 22 July 2008:"As National Statistician, I have been asked to reply to your Parliamentary Question asking what the latest estimate is of the percentage of the population in (a) Leeds West constituency and (b) Leeds Metropolitan District which is economically inactive. [220781]""The Office for National Statistics compiles estimates of inactivity for local areas from the Annual Population Survey (APS) following International Labour Organisation definitions.""Table 1 contains estimates of the percentage of persons aged 16 or more who were resident in the Leeds West constituency and the Leeds Metropolitan District and economically inactive for the 12 month period ending December 2007 from the APS. These differ from the published estimates which are for persons of working age (Males age 16-64, females age 16-59), which have also been included in the table.""As this estimate is for a subset of the population in a small geographical area, it is based on a very small sample size, and is therefore subject to a large margin of uncertainty."<Table width="100%" summary="" cellspacing="3" cellpadding="3" border="0"><thead><tr><th>Table 1: Percentage of persons economically inactive resident in Leeds West Parliamentary Constituency and Leeds Metropolitan District</th></tr></thead><TR><TD>Percentage</TD></TR><TR><TD>Year ending December 2007</TD><TD>Age 16+</TD><TD>Working Age¹</TD></TR><TR><TD>Leeds West</TD><TD>34</TD><TD>24</TD></TR><TR><TD>Leeds Metropolitan District</TD><TD>35</TD><TD>22</TD></TR><tfoot><TR><td>¹ Males age 16-64, Females age 16-59</td></TR><TR><td>Source:</td></TR><TR><td>ONS Annual Population Survey</td></TR></tfoot></Table>