Year	current US$
1974	87489386.98747203
1975	106861215.36709821
1976	119837690.95717168
1977	246290071.32901534
1978	355405063.7086224
1979	417602105.80724907
1980	716698237.630347
1981	762297580.5275923
1982	830130489.1297998
1983	834291663.7088569
1984	963159895.7940221
1985	950526100.4931483
1986	926143223.8289679
1987	1062164319.4650668
1988	1224790985.9994783
1989	1171396246.03514
1990	1319321193.048623
1991	1458692309.9186711
1992	1616376452.0705452
1993	1711577116.0997927
1994	1838142216.6704638
1995	2109869794.5145073
1996	2177841353.549294
1997	2220671589.4197626
1998	1906300123.924326
1999	2004750562.9936335
2000	2118801505.6007583
2001	2174482718.5898714
2002	2234761821.256481
2003	2270843476.2593827
2004	2441908310.594784
2005	2620479729.2953544
2006	2995783963.2004623
2007	3430026633.897374
2008	3634504613.782285
2009	3615366476.2551656
2010	4455231318.605158
2011	5067886252.864864
2012	5386969246.146865
2013	5653675851.166033
2014	5614238698.067938
2015	5098472119.286266
2016	4899383138.342502
2017	4954487139.100769
2018	5065553899.085119
2019	5142230609.601538
2020	4976446525.085472
2021	5270454909.075485
2022	5424866130.608953
2023	5862721059.058284