Year current US$ 1975 50000.0007450581 1976 109999.999403954 1977 430000.00715255697 1978 1230000.01907349 1979 2029999.97138977 1980 3589999.91416931 1981 3140000.10490417 1982 3839999.91416931 1983 3430000.0667572 1984 3329999.92370605 1985 2940000.05722046 1986 3630000.1144409203 1987 4429999.82833862 1988 3470000.02861023 1989 3210000.03814697 1990 3359999.89509583 1991 3140000.10490417 1992 4269999.98092651 1993 4849999.90463257 1994 5429999.82833862 1995 7659999.84741211 1996 8100000.38146973 1997 7170000.07629395 1998 7409999.84741211 1999 7469999.79019165 2000 8590000.15258789 2001 9899999.61853027 2002 10699999.8092651 2003 12439999.5803833 2004 14739999.7711182 2005 13449999.8092651 2006 13909999.8474121 2007 19030000.6866455 2008 20909999.8474121 2009 17350000.3814697 2010 15710000.038146999 2011 15850000.3814697 2012 11229999.5422363 2013 2640000.10490417 2014 1750000 2015 460000.00834465 2016 109999.999403954 2017 0 2018 39999.9991059303 2020 140000.000596046 2022 90000.0035762787