Year current US$ 1960 159999.91260468998 1961 10199999.8688698 1962 11020000.0777841 1963 10739999.782294 1964 14550000.205636 1965 -9369999.92094934 1966 -13310001.0156631 1967 5849999.27319586 1968 -10609999.8876452 1969 -13630000.2112985 1970 -8330000.3670156 1971 -1480000.1103431 1972 -6279999.9397248 1973 -210000.054910779 1974 -40000.0046938658 1975 5070000.04313886 1976 4889999.99687076 1977 4569999.95931983 1978 5129999.94307756 1979 8359999.94166195 1980 6639999.95216727 1981 14300000.0193715 1982 21369999.846443497 1983 33850000.0927597 1984 51269999.3737042 1985 75520000.21934511 1986 121669998.548925 1987 152899998.487905 1988 265890003.189445 1989 397579993.57581097 1990 323059999.04871 1991 432669992.402196 1992 336799995.31433 1993 272589995.019138 1994 285950002.26795703 1995 70420001.0746717 1996 92649999.8066574 1997 34139999.4157255 1998 124350003.72305499 1999 10420001.3857335 2000 -11980000.289157 2001 -2319998.99074435 2002 24200000.263750598 2003 59019999.5618314 2004 81460000.6528199 2005 125629998.810589 2006 65009999.8749793 2007 87259999.9401718 2008 89539999.5427579 2009 52750001.0430813 2010 84619999.4385242 2011 65689999.9380112 2012 29330000.1733005 2013 35980000.4661083 2014 46470000.8649379 2015 38230000.1308322 2016 33710000.2989173 2017 105579999.36305001 2018 -5349998.23197722 2019 -13230002.1909177 2020 165419998.653233 2021 172650001.373142 2022 128840000.51394093