Year	current US$
1978	11489533187.417871
1979	13088851633.795696
1980	18173071695.74283
1981	18319626531.69774
1982	15660027773.994635
1983	14065464243.693602
1984	12301500962.085905
1985	12371062311.032671
1986	12154824040.439196
1987	12951607267.67679
1988	14222050344.80612
1989	15424106975.30911
1990	17961332674.35244
1991	19251053452.647392
1992	19489037218.42834
1993	20664151055.46706
1994	21178125715.338043
1995	21724736996.265446
1996	22816865958.907196
1997	23265444037.444645
1998	23894862926.354984
1999	25581462144.540794
2000	25292920278.778397
2001	27339351046.013386
2002	28030507067.282406
2003	33231670756.5224
2004	40704380882.16466
2005	48168652540.375175
2006	60877432098.34421
2007	78172829301.08138
2008	101161874491.93176
2009	88590402392.75487
2010	99619745926.4877
2011	117986964572.2365
2012	116634752194.53197
2013	116688530435.41725
2014	125215818752.79634
2015	108182855078.33379
2016	93088717716.79555
2017	105764125293.5078
2018	123645659853.5528
2019	130412150006.05602
2020	98317940897.02939
2021	105766375479.08179
2022	128408219817.40736