Year current US$ 1970 36100000.0834465 1971 40940000.608563416 1972 42989999.689161755 1973 40470000.291243196 1974 71090000.33698973 1975 85779999.69944356 1976 65420000.34451488 1977 83749999.28846961 1978 132070000.60938294 1979 200659999.46184468 1980 241680000.2846867 1981 206129999.38800937 1982 198130001.45368284 1983 232509999.1336465 1984 221119999.99359256 1985 240329998.80798158 1986 282669998.4949082 1987 310919999.5175005 1988 330590000.98332775 1989 421410002.2390483 1990 478210001.14642084 1991 488859999.00475156 1992 618210000.205785 1993 661299997.6128337 1994 686559998.3613938 1995 676629999.9952319 1996 656770004.3749064 1997 361020001.0165572 1998 342519998.4181671 1999 321529999.65846527 2000 335410000.89049333 2001 349319998.13765293 2002 321829998.1057644 2003 359169998.94380575 2004 372670001.00016594 2005 446929999.12798405 2006 498600002.795458 2007 679580002.2482868 2008 706379995.1076508 2009 713990000.6055832 2010 756339998.8412857 2011 731250004.053116 2012 636890894.6882001 2013 733002409.5475674 2014 795352004.5280457 2015 828793558.487494 2016 832792664.8007705 2017 863821781.4043167 2018 863392237.3056412 2019 916521997.9286195 2020 859638004.1837693 2021 797914999.1869928 2022 795851003.5276415