"Figure 3: The quality of early estimates of GDP growth has improved over time, with a lower mean absolute revision in more recent periods ","" "","" "","" "Notes","" "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 2017 Q4","0.10","0.15"