Year	current US$
1971	4080224136.18636
1972	4746718631.53366
1973	5804919158.53261
1974	7172057690.43025
1975	8315519385.89201
1976	8846319840.26081
1977	10125510044.6661
1978	12095093966.1721
1979	14452640428.7374
1980	19556133452.8682
1981	15722372952.571
1982	15596145899.1587
1983	14299988563.1733
1984	13095642908.6005
1985	12956878216.5122
1986	17307236623.929
1987	19220341813.8064
1988	22229369973.6106
1989	22995394464.1991
1990	26602246204.5264
1991	28507293602.6275
1992	29773182473.2316
1993	27776360348.886
1994	31512546279.7729
1995	34059569746.4926
1996	38128744388.3945
1997	34466914117.2323
1998	37131375560.2897
1999	36962485478.1933
2000	34499692022.3367
2001	35096674765.1429
2002	37661613820.9269
2003	46495699768.2913
2004	53302061906.2765
2005	56321339636.9583
2006	61947136916.7535
2007	71296093339.8084
2008	83509628415.6011
2009	83127281257.099
2010	82223839777.3265
2011	89130533759.8501
2012	87104305169.485
2013	95548098253.7095
2014	105517873660.389
2015	98139484500.0773
2016	99320509536.0715
2017	105480740261.074
2018	113404413090.566
2019	114851903519.132
2020	108024132606.154
2021	126525657646.188