Year current US$ 1970 29999.999329447703 1971 50000.0007450581 1972 9999.99977648258 1974 400000.00596046395 1975 2099999.90463257 1976 649999.976158142 1978 1679999.94754791 1979 349999.99403953605 1980 670000.016689301 1981 289999.99165535 1982 150000.005960464 1983 2099999.90463257 1984 5139999.8664856 1985 4050000.1907348596 1986 4329999.92370605 1987 4489999.771118159 1988 3900000.09536743 1989 20770000.4577637 1990 10500000 1991 12850000.3814697 1992 12560000.4196167 1993 9960000.03814697 1994 13600000.3814697 1995 85830001.8310547 1996 67349998.4741211 1997 42169998.1689453 1998 47520000.4577637 1999 35400001.5258789 2000 11170000.076293899 2001 15789999.961853001 2002 15390000.3433228 2003 10310000.4196167 2004 42950000.762939505 2005 55909999.8474121 2006 82419998.1689453 2007 97480003.3569336 2008 117500000 2009 102669998.168945 2010 284269989.013672 2011 180720001.220703 2012 131410003.662109 2013 105279998.77929701 2014 163059997.55859402 2015 133839996.337891 2016 120400001.52587901 2017 73760002.1362305 2018 134679992.67578098 2019 57080001.8310547 2020 103319999.69482401 2021 96300003.0517578 2022 48180000.3051758