Year current US$ 1967 9999.99977648258 1968 19999.9995529652 1969 19999.9995529652 1970 19999.9995529652 1971 19999.9995529652 1972 50000.0007450581 1973 119999.997317791 1974 50000.0007450581 1975 930000.007152557 1976 2569999.9332428 1977 59999.9986588955 1978 409999.99642372096 1979 -39999.9991059303 1980 1830000.04291534 1981 689999.997615814 1982 959999.978542328 1983 100000.00149011599 1984 180000.00715255702 1985 19999.9995529652 1986 -270000.010728836 1987 -140000.000596046 1988 -159999.99642372102 1989 1629999.99523163 1990 1580000.04291534 1991 2710000.03814697 1992 3150000.09536743 1993 4320000.17166138 1994 1980000.01907349 1995 5619999.88555908 1996 3849999.90463257 1997 2839999.91416931 1998 2680000.0667572 1999 2720000.02861023 2000 319999.99284744303 2001 2410000.08583069 2002 7750000 2003 17909999.8474121 2004 14180000.3051758 2005 23639999.3896484 2006 29629999.1607666 2007 40740001.6784668 2008 50380001.0681152 2009 86010002.1362305 2010 76839996.3378906 2011 90150001.5258789 2012 81480003.3569336 2013 59439998.626709 2014 77769996.6430664 2015 86250000 2016 38659999.8474121 2017 66309997.55859381 2018 80040000.9155273 2019 73319999.6948242 2020 45040000.9155273 2021 108180000.30517599 2022 37619998.9318848