Year current US$ 1969 369999.99359250104 1970 360000.003129244 1971 749999.988824129 1972 179999.995976686 1973 280000.004917383 1974 130000.00081956401 1975 169999.996200204 1976 19999.9995529652 1977 0 1978 3230000.01907349 1979 10079999.923706101 1980 69409997.2620606 1981 110579999.029636 1982 95740002.7513504 1983 85719996.9775975 1984 85080000.6873906 1985 68300001.1909753 1986 79049999.0656972 1987 79400001.5258789 1988 62990000.7992983 1989 69120000.66041951 1990 58960000.8428097 1991 47809998.8400936 1992 103499998.33107 1993 74659998.4169006 1994 65619999.408721894 1995 55170000.0762939 1996 26649999.4173646 1997 23279999.7404218 1998 20219999.3021786 1999 21440000.3328919 2000 30900000.4529953 2001 35440000.0572205 2002 42479999.5422363 2003 34989999.756217 2004 68610000.6103516 2005 18059999.838471398 2006 12819999.5905161 2007 8260000.094771391 2008 9379999.83131886 2009 3940000.05722046 2010 7289999.90224838 2011 7530000.20980835 2012 9976300.1203537 2013 7128212.92877197 2014 0 2015 9477071.40445709 2016 63225826.2634277 2017 16835649.728775 2018 8682334.3038559 2019 6428659.46888924 2020 13096280.4999726 2021 11490570.0683594 2022 8076099.87258912