Year current US$ 1970 143402793.205868 1971 162978380.707088 1972 221764746.484672 1973 301190011.94455 1974 252033652.834716 1975 498870443.956045 1976 650787996.102634 1977 1660889285.70128 1978 2871318301.17481 1979 4777637313.10071 1980 6920802205.46728 1981 8781144584.92953 1982 11281711333.9797 1983 12781851381.1757 1984 13856756373.4004 1985 14947577409.37 1986 12002251050.3265 1987 12222663432.4563 1988 11418041742.7987 1989 12364722502.8374 1990 13742684154.8176 1991 15585844735.4553 1992 12459824586.8388 1993 13827124637.1774 1994 15593614045.7304 1995 16678475457.0882 1996 18164371742.6634 1997 18198818551.0053 1998 18014073504.5239 1999 17409541557.9294 2000 17326497147.0408 2001 18942592049.69 2002 17585117909.7003 2003 20370755417.4681 2004 26509799198.5107 2005 28568545532.9776 2006 32136100376.1697 2007 36408574030.8167 2008 43420455966.7713 2009 40848767203.6889 2010 46237080135.6134 2011 50023436051.5894 2012 55927337974.1809 2013 66276535662.9132 2014 70856814059.1044 2015 85907586171.4414 2016 77553925520.772 2017 77548951000.7644 2018 77225418256.4956 2019 81166690196.0189 2020 86208979445.9739 2021 105110086054.708