I have been asked to reply.
The information requested falls within the responsibility of the UK Statistics Authority. I have asked the authority to reply.
Letter from Karen Dunnell, dated December 2008:
As National Statistician. I have been asked to reply to your Parliamentary Question asking what estimate has made of the number of people currently unemployed who were previously employed in the construction industry (242467]
According to the latest Labour force Survey (LPS) estimates for the three months to September 2008. 139,000 people were unemployed who stated that within the past 8 years their last paid employment was in the construction industry. As with any sample survey, estimates from the LFS are subject to a margin of uncertainty.
The figures are derived from the LFS microdata which arc 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.