Year current US$ 1960 1781882353.7790112 1961 1932110107.7327797 1962 1179442048.638197 1963 1343476787.6774457 1964 1414596267.986221 1965 1581564367.3482857 1966 1743304836.5641024 1967 1887236131.7948718 1968 2255598090.948718 1969 2564367467.692308 1970 1992498057.0257523 1971 2265700505.8376403 1972 2377350062.518334 1973 3104085653.0136466 1974 4312458435.961181 1975 4546981326.453179 1976 5022903249.45721 1977 5655785939.556858 1978 6417642636.236488 1979 7549124925.754484 1980 8118215677.088512 1981 8832131907.869335 1982 8619754164.98829 1983 7372095093.576125 1984 7748196856.906534 1985 7549745941.145167 1986 7147300301.883434 1987 7966232423.450875 1988 8678089260.44132 1989 9637314566.348509 1990 9677308365.932415 1991 9496415465.791185 1992 11545088653.041027 1993 11729838083.127476 1994 14090514520.34959 1995 16019062689.49693 1996 17049570309.847765 1997 15479644227.828236 1998 10985153279.102438 1999 13012471969.403757 2000 11664484157.290022 2001 10498741319.328686 2002 11338000413.808603 2003 11446465563.289253 2004 13285463151.203453 2005 14520545925.232 2006 17056025484.37157 2007 21223486188.28336 2008 26364766535.370754 2009 25587104886.256805 2010 28648357930.575584 2011 33014569981.38925 2012 34300608565.79024 2013 35412406693.32238 2014 36506234786.346275 2015 33698317641.272503 2016 32516285638.496246 2017 33449042759.145554 2018 33470729841.555763 2019 33237044033.102077 2020 36845479325.20524 2021 39681302647.1153 2022 38622895943.311646 2023 41077552564.235466