Obviously
this analysis is from a source working in the interest of landlords - but the figures are government figures:
Figures from the Office for National Statistics show that in the eight years between December 2005 and December 2013, rents across London as a whole increased by no more than 11.4 per cent. Inflation as measured by RPI over this period was 30.5 per cent and by CPI was 26.2 per cent.
In comparison, figures published by the Department for Communities and Local Government show that in the eight year period between 2005/06 and 2012/13, local authority housing average weekly rents in London increased by 36.2 per cent and 48.2 per cent for housing associations.