Year current US$ 1973 19999.9995529652 1974 50000.0007450581 1975 90000.0035762787 1976 90000.0035762787 1977 119999.997317791 1978 13300000.1907349 1979 750000 1980 1899999.97615814 1981 3579999.92370605 1982 1399999.97615814 1983 2250000 1984 430000.00715255697 1985 1159999.9666214 1986 2390000.10490417 1987 1610000.01430511 1988 1129999.99523163 1989 19999.9995529652 1990 769999.980926514 1994 819999.992847443 1995 1970000.02861023 1996 1830000.04291534 1997 1230000.01907349 1998 1870000.00476837 1999 1230000.01907349 2000 1559999.9427795399 2001 2200000.04768372 2002 4170000.07629395 2003 639999.985694885 2004 2779999.97138977 2005 709999.978542328 2006 660000.026226044 2007 2420000.07629395 2008 15819999.6948242 2009 5769999.98092651 2010 2740000.00953674 2011 2950000.04768372 2012 1610000.01430511 2013 4210000.03814697 2014 7949999.80926514 2015 1279999.97138977 2016 1720000.02861023 2017 3789999.96185303 2018 2809999.94277954 2019 2440000.05722046 2020 2190000.05722046 2021 2289999.96185303 2022 750000