Year	current US$
1978	11489533187.417873
1979	13088851633.795696
1980	18173071695.742836
1981	18319626531.697746
1982	15660027773.994637
1983	14065464243.693605
1984	12301500962.085909
1985	12371062311.032671
1986	12154824040.439198
1987	12951607267.67679
1988	14222050344.80612
1989	15424106975.309114
1990	17961332674.352444
1991	19251053452.6474
1992	19489037218.428345
1993	20664151055.467064
1994	21178125715.338047
1995	21724736996.26545
1996	22816865958.907204
1997	23265444037.44465
1998	23894862926.354984
1999	25581462144.54079
2000	25292920278.778408
2001	27339351046.013386
2002	28030507067.282406
2003	33231670756.522404
2004	40704380882.16467
2005	48168652540.375175
2006	60877432098.34423
2007	78172829301.08142
2008	101161874491.93182
2009	88590402392.75493
2010	99619745926.48778
2011	117986964572.23659
2012	116634752194.532
2013	116688530435.41728
2014	125215818752.79634
2015	108182855078.33382
2016	93088717716.79561
2017	105764125293.50778
2018	123645659853.55286
2019	130412150006.05606
2020	98317940897.02943
2021	105766375479.0818
2022	128408219817.4074