Year current US$ 1967 19999.9995529652 1969 140000.000596046 1970 9999.99977648258 1971 19999.9995529652 1972 29999.999329447703 1973 59999.9986588955 1974 140000.000596046 1975 119999.997317791 1977 19999.9995529652 1980 59999.9986588955 1984 289999.99165535 1985 340000.00357627904 1986 340000.00357627904 1987 100000.00149011599 1988 569999.992847443 1989 500000 1990 579999.983310699 1991 639999.985694885 1992 1610000.01430511 1993 1299999.95231628 1994 1769999.98092651 1995 2039999.96185303 1996 2089999.9141693101 1997 1889999.98569489 1998 2109999.89509583 1999 1950000.04768372 2000 2309999.94277954 2001 2380000.1144409203 2002 2849999.90463257 2003 3880000.1144409203 2004 3059999.94277954 2005 2819999.9332428 2006 2799999.95231628 2007 9439999.5803833 2008 5940000.05722046 2009 29469999.3133545 2010 37419998.1689453 2011 72550003.0517578 2012 214639999.38964802 2013 678599975.585938 2014 140050003.05175802 2015 157199996.94824198 2016 111540000.915527 2017 54709999.0844727 2018 84279998.7792969 2019 14550000.1907349 2020 17450000.762939498 2021 25649999.6185303 2022 30049999.237060502