Year current US$ 1960 2230139999.5777802 1961 2451880037.19039 1962 2573560018.36061 1963 2922689997.43648 1964 3303790021.53315 1965 3444659915.46214 1966 3466029946.55445 1967 3743619987.3779 1968 3320369991.2819996 1969 3321799980.88069 1970 3659979942.4875503 1971 4087190035.35807 1972 3981410058.34937 1973 5375289983.54077 1974 7573910066.49472 1975 10038099891.960602 1976 9552429849.80345 1977 9537349940.59801 1978 11467099853.7932 1979 11291310002.0587 1980 14493909982.4429 1981 13510189971.447 1982 12960419925.794 1983 12023420044.1241 1984 12121479940.4144 1985 12506970021.2479 1986 14906659843.7428 1987 16110739963.0547 1988 18207710056.8004 1989 19201799962.9974 1990 26298350296.5942 1991 27453499927.90817 1992 26781539792.656933 1993 22057599924.474907 1994 25774999910.816513 1995 22616829853.553288 1996 22602669907.644394 1997 19197749986.350567 1998 21066299888.491585 1999 21005270013.80923 2000 19552300108.90962 2001 22034160190.58224 2002 22114470104.217575 2003 23552420017.242462 2004 25681429879.188538 2005 34283890010.8337 2006 40057909799.5758 2007 33701179777.1454 2008 35930049858.0933 2009 40708280107.4982 2010 43031670543.6707 2011 42493440116.8823 2012 44768720358.8486 2013 54008050247.1924 2014 49778650379.1809 2015 46597869850.1587 2016 44430510120.3918 2017 47008650150.2991 2018 45538839714.0503 2019 46519809886.9324 2020 60189680133.8196 2021 60971690116.8823