Year	current US$
1980	42642151.092571504
1981	46212387.32845515
1982	39060792.625423454
1983	34563059.017140396
1984	41459809.55163485
1985	35176232.46250141
1986	38451487.78224135
1987	57436169.40008701
1988	78124970.2777535
1989	96112036.1087065
1990	120865611.3932395
1991	144788599.8043455
1992	160380974.544814
1993	188366397.52855602
1994	141636723.51685598
1995	159714516.9118285
1996	154577330.38037
1997	154807257.058204
1998	153629945.0141575
1999	213801502.285667
2000	282957898.702692
2001	260073626.514348
2002	249994744.61155298
2003	222308142.31398
2004	221414443.7485865
2005	244523807.1433715
2006	267162622.66884547
2007	300752740.3042775
2008	384020562.67640597
2009	279951956.375469
2010	238066561.04123148
2011	254178007.6504645
2012	247880797.64280498
2013	295058522.4670575
2014	352068782.43536
2015	358137588.6025855
2016	403314487.086427
2017	349204994.7496055
2018	379903934.4777555
2019	400332000.21030146
2020	352636599.6110715
2021	486012071.228271
2022	588640648.65228
2023	674000000