Year	current US$
1970	249599899.3
1971	296903083.29539996
1972	294763141.6215
1973	438359400.0456
1974	580733254.5537
1975	809446593.3034999
1976	820925276.5885999
1977	914280768.0513
1978	1089015058.3213
1979	1200588133.2296999
1980	1617174510.9298
1981	1598142319.9681997
1982	1537029030.5707998
1983	1491452192.6178
1984	1424450408.3028
1985	1280113636.1671999
1986	1454704739.7474
1987	1610957369.1647997
1988	1723262793.4113998
1989	1801933473.3098001
1990	1891524567.4566221
1991	1540745437.4193392
1992	1466714039.3783212
1993	1622952669.835473
1994	1930698828.4438682
1995	2338322842.155942
1996	2533430777.1173153
1997	2768898097.1666646
1998	2875017148.1470647
1999	3155958982.243782
2000	3700655886.782589
2001	4589627865.985341
2002	5303646188.035576
2003	7270340806.704678
2004	11771744390.065596
2005	15734869318.439184
2006	23621938069.664574
2007	33382105216.947884
2008	44231231290.8729
2009	38267857271.38303
2010	39667217138.227325
2011	46173880007.73218
2012	53889709093.18706
2013	60697266075.39892
2014	60731251619.96003
2015	48471847068.47637
2016	44831332732.61702
2017	61197231598.9421
2018	64535645518.80714
2019	67572956650.05386
2020	61794844547.06592
2021	68463112236.37857
2022	56026136958.939896