Year	current US$
1970	237200922934.4818
1971	264520024162.0338
1972	301969673215.09705
1973	381529806838.29443
1974	440214399469.39276
1975	483441483180.27875
1976	517988525658.3707
1977	598803907305.6597
1978	623281989039.693
1979	712128462742.4996
1980	782161221636.775
1981	836057781090.0763
1982	857134961746.3843
1983	785952124058.3344
1984	836823243465.2095
1985	859398596085.872
1986	931824039981.1815
1987	953022427331.5532
1988	1081606179150.1108
1989	1268765304615.4448
1990	1330848353290.9883
1991	1362277287219.3003
1992	1480177710158.7134
1993	1563308419412.5217
1994	1879530161450.5881
1995	2388528085941.943
1996	2701017349624.1304
1997	2827696168534.981
1998	2729523059246.549
1999	2495527861835.658
2000	2717374484967.383
2001	2808381836834.902
2002	2977521852379.283
2003	3379867499243.9316
2004	4044739180488.7954
2005	4850807975622.345
2006	5862896552033.411
2007	7442525705259.776
2008	9099178142704.021
2009	8874847548299.84
2010	10489738392503.576
2011	12476479327598.531
2012	13495637538274.332
2013	14492992544454.623
2014	15120714515555.875
2015	14151582161538.719
2016	14193484718036.463
2017	15807644346923.57
2018	17031186054209.473
2019	17321128288125.57
2020	16745380771714.363
2021	19506796626699.22