Year current US$ 1975 9999.99977648258 1976 19999.9995529652 1977 29999.999329447703 1978 29999.999329447703 1979 29999.999329447703 1980 39999.9991059303 1981 39999.9991059303 1982 50000.0007450581 1983 50000.0007450581 1984 70000.0002980232 1985 39999.9991059303 1986 79999.9982118607 1987 39999.9991059303 1988 19999.9995529652 1989 9999.99977648258 1990 180000.00715255702 1991 140000.000596046 1992 170000.00178813902 1993 409999.99642372096 1994 649999.976158142 1995 1220000.02861023 1996 1720000.02861023 1997 1629999.99523163 1998 1460000.03814697 1999 1509999.9904632599 2000 990000.009536743 2001 930000.007152557 2002 1480000.01907349 2003 2240000.00953674 2004 1779999.97138977 2005 1889999.98569489 2006 2319999.9332428 2007 2079999.9237060498 2008 3259999.99046326 2009 1710000.03814697 2010 1779999.97138977 2011 1909999.9666214 2012 1769999.98092651 2013 1340000.0333786 2014 649999.976158142 2015 1299999.95231628 2016 3569999.9332428 2017 4150000.09536743 2018 3589999.91416931 2019 2470000.02861023 2020 2130000.1144409203 2021 2970000.02861023 2022 2369999.8855590797