Year current US$ 1970 110771069.44158253 1971 120412316.77739112 1972 137305918.09180918 1973 200096030.72983354 1974 280721795.3001448 1975 349757335.7134888 1976 398139351.71160257 1977 481215004.5745654 1978 583776094.4636292 1979 794924550.8982036 1980 1011865523.2413622 1981 901957038.188277 1982 760449062.5 1983 697201131.7383102 1984 687744389.607971 1985 721004117.8623719 1986 923257046.1000656 1987 1218522365.805169 1988 1421810951.0834305 1989 1528217541.266322 1990 1931606510.87397 1991 2127761088.9774237 1992 2470701036.478665 1993 2297713307.1308255 1994 2577626150.1760764 1995 4712647130.350194 1996 4361842544.068604 1997 4179056834.61239 1998 4388513647.916897 1999 4602893887.214808 2000 4893557071.645915 2001 4441806871.861776 2002 5069588791.315514 2003 5858257346.516331 2004 6288802702.623144 2005 6645853407.87044 2006 8364566054.170028 2007 10243091859.632957 2008 13498804345.181925 2009 12785572756.246735 2010 13639282423.30835 2011 15478481458.987995 2012 15434046809.405684 2013 16456699273.549065 2014 17416976749.503143 2015 17149447462.320925 2016 18412285257.925156 2017 21318655585.59928 2018 24755306920.64886 2019 26218369672.531223 2020 26504878546.916065 2021 30117508100.86529 2022 30470368358.87962 2023 34937965943.237854