"Figure C4: Mean revisions to quarterly volume GDP growth by Blue Book","" "","" "","" "Notes","1. The revisions in each Blue Book relate to the period from Quarter 1 1997 to the latest quarter available in that publication. The exception here is Blue Book 2019, where indicative estimates up to Quarter 4 2016 are only included. 2. Blue Book 2011 includes the switch from RPI to CPI. 3. The chart is calculated on the revisions between a Blue Book round and the preceding vintage. " "Unit","% points" "","" "","Mean Revisions ( By Blue Book)","Mean Revisions ( Across All Blue Books 2004 to 2019) " "BB 2004","0.02","0.01" "BB 2005","0.02","0.01" "BB 2006","0.02","0.01" "BB 2007","0.01","0.01" "BB 2008","0.02","0.01" "BB 2009","-0.02","0.01" "BB 2010","0.01","0.01" "BB 2011","0.06","0.01" "BB 2012","0.00","0.01" "BB 2013","-0.02","0.01" "BB 2014","0.01","0.01" "BB 2015","0.00","0.01" "BB 2016","-0.01","0.01" "BB 2017","0.00","0.01" "BB 2018","0.01","0.01" "BB 2019","0.00","0.01"