Year	current US$
1986	37957587.6022794
1987	46005101.3364344
1988	56750855.8444089
1989	66577671.126465
1990	73253253.5441411
1991	83506733.3680332
1992	92324851.778358
1993	104363318.202596
1994	119061176.294002
1995	142518387.524617
1996	150776945.52903
1997	172625698.324022
1998	184916201.117319
1999	174860335.195531
2000	191428518.654718
2001	195300622.43085
2002	203959515.555782
2003	213792033.786204
2004	237489425.447731
2005	241083341.275174
2006	258511648.624753
2007	280579736.05368
2008	294407670.948928
2009	256647501.536191
2010	254946978.814397
2011	281982631.952405
2012	271442826.883523
2013	288254149.266427
2014	294048735.665398
2015	326384493.667984
2016	329491859.580995
2017	342747564.690904
2018	353260647.099514
2019	373370713.29975
2020	306599138.907713
2021	370254073.22711