Year	current US$
1971	3440748542.75956
1972	4010309307.36628
1973	4958086986.13126
1974	5800906893.513929
1975	7722209511.998171
1976	12423966824.62184
1977	14262255592.472578
1978	17546168578.09583
1979	20571650150.715782
1980	26422732158.819527
1981	24594310700.00656
1982	25259713827.14144
1983	23377899702.0895
1984	22212752034.00333
1985	23308003738.348698
1986	29965868526.244442
1987	36298756074.93425
1988	37265102319.4841
1989	39782705380.1877
1990	49229923924.0779
1991	48422790722.9097
1992	54652440197.5532
1993	52543758089.32462
1994	54685450246.26252
1995	67708618619.34193
1996	68826382620.0777
1997	71664436413.42389
1998	77166372250.1726
1999	76484437380.88013
2000	77850959146.01637
2001	78430185940.0292
2002	92810961104.91682
2003	112744860776.84564
2004	143878237524.09766
2005	156316630554.0882
2006	178287509638.31696
2007	208062334310.49985
2008	239209148983.7434
2009	221643978058.96762
2010	225953634606.63742
2011	250544090011.99146
2012	250841690915.324
2013	271335046265.93356
2014	297980494156.8852
2015	275829820126.63525
2016	288333260810.08765
2017	317380652599.6544
2018	351120003604.5974
2019	361054538254.9197
2020	328769288669.3619
2021	402395562199.3516
2022	424572933294.0484
2023	434347207694.9871