Year current US$ 1960 568903646.4385414 1961 564535648.1857407 1962 624469596.2121615 1963 671957577.2169691 1964 688239612.704155 1965 699159580.3361679 1966 769999412.0002352 1967 820959951.6160194 1968 874775510.089796 1969 915179493.9282025 1970 965019473.9922104 1971 1149791400.08344 1972 1310119475.9522097 1973 1480605016.9742525 1974 1913519234.5923061 1975 2223555883.659874 1976 2140515074.1381915 1977 2501038776.8543 1978 3208535532.5256877 1979 4021506000.621513 1980 4506355432.821302 1981 4231667141.5677576 1982 4084247630.4266715 1983 3655937937.051051 1984 3976440755.868911 1985 3573187800.452005 1986 4337849079.567516 1987 4962097887.920211 1988 5142068281.578399 1989 5705830030.010499 1990 5348266805.418531 1991 5177367223.710948 1992 5525087233.124373 1993 3630870904.2945614 1994 4461616088.684193 1995 6265638467.074159 1996 9163235904.935225 1997 10122686089.089458 1998 10950192738.711905 1999 10133688834.70584 2000 9947116621.762928 2001 10333006207.74893 2002 10336023724.550547 2003 11494241823.652967 2004 12155953105.699108 2005 14128258729.118227 2006 19687247727.436165 2007 23922198652.35837 2008 27038943090.95877 2009 30690867721.584442 2010 33066966716.15437 2011 35626309736.983475 2012 42411178039.1442 2013 47176778658.3168 2014 51943671450.12491 2015 52952688101.53283 2016 57164247777.354294 2017 63917075528.62027 2018 71091178701.72481 2019 77715656682.78876 2020 76941953830.68118 2021 82822038471.84126 2022 86628455495.56319 2023 82719629131.67493