Year current US$ 1970 5089999.983087186 1971 2499999.99627471 1972 2270000.0219047074 1973 7930000.03322958 1974 9479999.892413612 1975 14420000.117272127 1976 14570000.156760218 1977 23950000.12777746 1978 59809999.562799916 1979 83079999.99634929 1980 80940000.36641946 1981 67589999.74839385 1982 78059999.07106167 1983 72749999.1692602 1984 56359999.47786329 1985 53460000.25048855 1986 77649999.45834276 1987 127829999.99262393 1988 103250000.02421431 1989 106219999.94479123 1990 129699999.3231146 1991 88949999.20018026 1992 94020000.49129117 1993 104869999.51861796 1994 92999999.67403708 1995 99369998.99707738 1996 74209998.8739937 1997 47439998.40319159 1998 72040000.11272731 1999 79899997.64226377 2000 45300000.57630244 2001 33880000.02689657 2002 35839999.97749922 2003 59809999.91856517 2004 50089998.56002625 2005 28400000.67278742 2006 24959999.876096845 2007 29849999.84689059 2008 483880010.29565907 2009 58270000.86754553 2010 51250000.47683712 2011 96569997.54533173 2012 66929998.99201091 2013 62350001.01290637 2014 49040000.4666299 2015 77909999.02412292 2016 110079997.12415043 2017 45760000.24564564 2018 68429999.35895202 2019 85090003.38055196 2020 62790002.22869217 2021 83540000.95091765 2022 93249999.61443242