Economically active getting older
1. In 2001 Londoners' modal age was 28, in 2016 it was 31 (3 years older)
2. The largest age group are 25-35-year olds
3. Positive 'national' net migration to London shows more 20-year olds arrive than leave
4. All other age groups are leaving the capital, mostly commuting into the capital by train (800,000 commuters enter London daily)