The Department for Business, Innovation and Skills (BIS) analysis of the Labour Force Survey.
BIS regularly conducts internal analysis of the Labour Force Survey (LFS). The most recent LFS release (from Janaury to March 2014) was used to calculate the proportion of jobs in each government office region which are classified as ‘highly skilled’.
All figures are for England only. Source: BIS analysis of Labour Force Survey microdata, January to March 2014.