Year current US$ 1960 1828734327.7173054 1961 1643546078.0302448 1962 416673668.1344768 1963 995387052.2132605 1964 856495849.7567378 1965 810198782.2712303 1966 749433873.600888 1967 729178904.0441072 1968 931728599.6119149 1969 1195043264.6149733 1970 1417847868.974653 1971 1404540635.80504 1972 1740871306.0886977 1973 2750792038.8543077 1974 4688153800.155475 1975 6684546139.573323 1976 6580487772.660954 1977 8753826796.740973 1978 10590281903.224993 1979 10925793281.389532 1980 12847073134.503382 1981 13693843725.207424 1982 13109208304.008196 1983 12591881327.263615 1984 14749040620.061707 1985 15493853613.90668 1986 14758682283.648678 1987 12289313328.420357 1988 13356401460.953575 1989 15863715870.996843 1990 15473054068.162706 1991 10788791993.66639 1992 11458103093.161201 1993 11556877007.969917 1994 11084076997.473452 1995 12110069749.051498 1996 11240014124.110876 1997 10279946207.845455 1998 10850007516.3063 1999 11079856775.649607 2000 11390170995.954918 2001 12125335043.294233 2002 14427027969.965576 2003 16239633128.636581 2004 21108011867.78906 2005 24052494566.183655 2006 24802903072.554634 2007 32522138069.97593 2008 45783784537.059395 2009 47648700297.21772 2010 50674049706.380844 2011 57272844071.98931 2012 59908816252.97844 2013 65124130006.400536 2014 70019891158.5134 2015 61266393934.42737 2016 56532525719.51405 2017 55990439549.82318 2018 56446212848.107735 2019 50490845023.65652 2020 40978554435.82738 2021 43564492197.79601 2022 46001550406.977425 2023 50446959946.013535