"Figure 2: The quality of early quarterly estimates of GDP growth has improved over time","" "Mean absolute revision, Quarter 2 (Apr to June) 1961 to Quarter 4 (Oct to Dec) 1969, to Quarter 1 (Jan to Mar) 2010 to Quarter 4 (Oct to Dec) 2018, UK","" "","" "Notes","1. These revisions refer to those between the first estimates and those published 3 months and 36 months (or 3 years) later respectively. 2. Revisions to quarterly estimates of volume GDP only cover up to Quarter 4 2018 as T+36 months estimates are not available for more recent periods, including that covering the pandemic. " "Unit"," Percentage points" "","" "","t+3","t+36" "1961 Q2 to 1969 Q4","0.28","0.79" "1970 Q1 to 1979 Q4","0.48","0.98" "1980 Q1 to 1989 Q4","0.34","0.71" "1990 Q1 to 1999 Q4","0.15","0.22" "2000 Q1 to 2009 Q4","0.15","0.27" "2010 Q1 to 2018 Q4","0.09","0.14"