Year current US$ 1960 19886201.55995694 1961 20631155.082859747 1962 22904824.26644525 1963 26283956.045039624 1964 27033731.081854165 1965 28156258.47569813 1966 34598066.9032016 1967 38211240.47909118 1968 45240699.79057676 1969 46930193.34539552 1970 46670960.90157616 1971 55201175.10808908 1972 71420741.50466052 1973 95114530.52434582 1974 104277204.96056189 1975 138115857.70151958 1976 133500414.5251945 1977 148160356.4563317 1978 201634471.18102762 1979 244450912.57380468 1980 300076313.5836783 1981 267911606.09589058 1982 291533131.5986857 1983 325927761.24503523 1984 324288450.15034056 1985 355471100.78602225 1986 461441743.1358606 1987 472821007.3821234 1988 465673424.08718586 1989 465818591.133267 1990 547261366.7544845 1991 755883649.7691023 1992 789967801.0804725 1993 742513367.2059118 1994 385969357.86724687 1995 332717258.73377794 1996 326379057.5679603 1997 486549429.56300956 1998 471699572.39301467 1999 354583996.7800133 2000 373408928.9171698 2001 394048210.0890506 2002 557002497.517609 2003 608211011.4418752 2004 697275708.7241528 2005 831637828.3790256 2006 1029179990.9317236 2007 1475579286.288393 2008 1414414668.1816113 2009 1304068842.995493 2010 1390018140.509479 2011 2009361826.765305 2012 2434040883.4568224 2013 2527333888.595955 2014 2998653612.6439524 2015 2400695296.5294204 2016 2329304203.8645787 2017 2140452404.0787961 2018 1995083335.837129 2019 1850629839.528458 2020 2004538297.9393663 2021 2204655314.923788 2022 1872228998.2729328 2023 2006951384.6792505