CThe GLA's 2014 round of projections is its first to fully incorporate the results of the 2011 Census, with underlying migration data updated using commissioned origin-destination tables.
Because of the uncertainty about future migration, projections have been released based on both long- and short-term migration trends.
The long-term projection yields a lower total population and younger age structure for Greater London than those based on recent trends only.
Source: Data.london.gov.uk, 2014