Year	current US$
1971	42016.4354
1972	48828.0915
1973	214453.9356
1974	4712150.6487
1975	18192758.061499998
1976	43411784.2532
1977	53271235.773200005
1978	73234311.8813
1979	93737645.3927
1980	108253594.6348
1981	119863165.9183
1982	155028169.03680003
1983	134708193.423
1984	137879685.161
1985	150898415.9484
1986	165307990.5533
1987	279558156.46110004
1988	376555694.7638
1989	410172260.898
1990	477723658.1961254
1991	305774797.5289699
1992	292340364.6998016
1993	347110343.88739014
1994	321567398.1663497
1995	1687146878.2434833
1996	1803119714.6603682
1997	2396307690.7122536
1998	3304387053.198027
1999	1230355307.1466734
2000	1494433367.0188768
2001	1712259963.1695757
2002	5218160882.839775
2003	5299276510.443777
2004	8281579863.211121
2005	9243157784.498089
2006	9816937418.630589
2007	11163791935.454441
2008	12368693081.68775
2009	15406617308.956032
2010	17039072306.312613
2011	18640619792.979015
2012	19044980334.20148
2013	20045978508.622383
2014	24217423442.68676
2015	26512991227.80391
2016	27313743998.076992
2017	36889766363.78274
2018	39155191394.894394
2019	42171117629.9233
2020	40986199824.683136
2021	44941951666.649086
2022	43179380563.7982