Year current US$ 1960 597350008.554757 1961 798079993.152991 1962 911699987.143278 1963 904989991.141483 1964 1010860000.75191 1965 1088290009.37939 1966 1165299995.75019 1967 1284430018.36538 1968 1152470006.85893 1969 1126479997.7540998 1970 1172670008.2887 1971 1356389994.5076602 1972 1454270011.2350302 1973 1804889999.65228 1974 2600700020.01524 1975 3497559963.88197 1976 3226930023.10395 1977 3847489995.30077 1978 5212200029.19436 1979 6664489981.65131 1980 7721580015.89775 1981 7488759983.53958 1982 7860069985.38971 1983 7584869929.56139 1984 8376560043.09654 1985 9217589920.52078 1986 11016589967.6085 1987 12813089894.5332 1988 14496010047.6742 1989 15500969892.5018 1990 17841889972.686802 1991 17822830018.9972 1992 19240769945.383102 1993 17349529899.597202 1994 19194359783.1726 1995 18636510098.4573 1996 16350740058.898901 1997 14895890031.8146 1998 14476799968.719501 1999 13226520071.0297 2000 13057700087.5473 2001 14288190022.4686 2002 19048810117.7216 2003 24879359913.826 2004 26488490002.632103 2005 32838650146.484398 2006 41197029866.218605 2007 31276520063.400303 2008 36169309823.9899 2009 39145190275.1923 2010 44362909770.9656 2011 47332209726.3336 2012 46763230147.3618 2013 47702790066.7191 2014 46459720042.7055 2015 44772349948.4062 2016 44314720095.6345 2017 49571320093.6317 2018 50893810125.8278 2019 53079579521.1792 2020 66970390327.4536 2021 63212760002.1362 2022 59734899822.2351