Year	current US$
1977	94261539.04524994
1978	122697980.81740576
1979	145206035.11090776
1980	151772562.5412918
1981	112671329.58490983
1982	131665727.60110243
1983	114721014.1837924
1984	96678122.95448343
1985	178395577.2580212
1986	138173863.83278716
1987	156724598.55252743
1988	197100331.92599812
1989	214318218.71007413
1990	239681675.0162965
1991	569010015.9839398
1992	568938550.7516822
1993	672566600.2407833
1994	702467080.4593431
1995	657191926.251
1996	792577716.0411477
1997	664631255.5470905
1998	742982674.2208567
1999	710941342.1146578
2000	703653923.2265569
2001	558208599.671145
2002	511841835.140132
2003	425338136.2855509
2004	874423157.6049923
2005	955576071.2357359
2006	904412766.8178891
2007	1116934682.8803246
2008	1454329983.0797548
2009	1310896515.776828
2010	1440028068.0169616
2011	1211478565.9395714
2012	1109170164.6412675
2013	1176742702.451085
2014	1074842339.252124
2015	1125435952.7907076
2016	1172567019.8426063
2017	1294574839.7586393
2018	1478523130.8474343
2019	1614083654.417229
2020	1679926433.4392328
2021	1830610457.1668415
2022	1824533751.8089724
2023	1910413510.801964