Year current US$ 1960 416633663.36633664 1961 306911437.2189817 1962 396153846.15384614 1963 749230769.2307693 1964 533092163.68548125 1965 460584202.4498425 1966 852443912.1020869 1967 1077937147.6881094 1968 1658081656.9972348 1969 2298369521.4616284 1970 2370588473.955405 1971 2473588316.2056475 1972 2333198097.6049023 1973 3609394115.3595195 1974 6371261334.206899 1975 6214256198.347108 1976 8263842975.206612 1977 11574586776.859505 1978 17922314049.586777 1979 25087603305.785126 1980 22255476945.998116 1981 23455412939.52102 1982 25048824745.49443 1983 28501770484.06036 1984 31493997710.601234 1985 32688329003.930946 1986 38104986055.99701 1987 48209903746.501045 1988 69489135756.12231 1989 90662557386.5026 1990 112079842410.79163 1991 136339060586.48676 1992 137724447345.72745 1993 147855509381.92844 1994 178552056653.97717 1995 220680399541.9004 1996 240549327102.02072 1997 211884041151.73386 1998 106485936896.0439 1999 154293172362.06387 2000 189526308459.86697 2001 173075472197.94724 2002 195028840090.66348 2003 226833651361.32147 2004 258175100880.17386 2005 303919367782.988 2006 347491098832.6759 2007 388105748537.0306 2008 352605837846.9805 2009 277518814657.02893 2010 372289486882.38245 2011 417588877720.96356 2012 400241319118.887 2013 409618144582.2193 2014 442236237225.0295 2015 432910754430.44684 2016 452043669382.5422 2017 524059222592.946 2018 543271530690.03485 2019 520114557120.8835 2020 524282326913.1411 2021 587848070858.2363 2022 555428201821.3611 2023 550307908820.235