The information requested falls within the responsibility of the UK Statistics Authority. I have asked the authority to reply.
Letter from Stephen Penneck, dated March 2010:
As Director General for the Office for National Statistics, I have been asked to reply to your Parliamentary Question asking how many people resident in St Albans constituency were recorded as self-employed in each year since 1997.(320888)
The Office for National Statistics (ONS) compiles employment statistics for local areas from the Annual Population Survey (APS) and its predecessor the annual Labour Force Survey (LFS) following International Labour Organisation (ILO) definitions. Unfortunately the sample size does not support analyses of self employed for the constituencies.
National and local area estimates for many labour market statistics, including employment, unemployment and claimant count are available on the NOMIS website at: