Year	current US$
1970	3586218482.689104
1971	4457971343.13128
1972	5009410764.700525
1973	6774601963.300843
1974	8630792281.170462
1975	11427806156.612907
1976	13331073032.163475
1977	15449234526.157602
1978	14784350380.558151
1979	16198337315.61383
1980	17976190476.19048
1981	17916020559.28217
1982	17749922528.664394
1983	17808508305.46571
1984	17077743061.937143
1985	16996347648.071463
1986	22670967043.96392
1987	27440593692.022263
1988	30239680834.73991
1989	27558548772.53965
1990	27354505806.987556
1991	26507118727.729874
1992	27315632794.27146
1993	25684582963.307537
1994	27491923600.090683
1995	32593761838.615986
1996	35684052218.67345
1997	38001102722.87726
1998	40876860478.98637
1999	38082110985.74213
2000	33947601626.939945
2001	33974999165.897438
2002	37986046744.657936
2003	43219824298.74863
2004	51965493709.945404
2005	62923244082.266205
2006	72397517658.61569
2007	94586553388.9486
2008	104538829787.23405
2009	89828252468.87077
2010	88959823521.30148
2011	107200552530.23196
2012	114376106574.98926
2013	123256000000
2014	118955355725.99835
2015	91953332644.41455
2016	92956190476.19048
2017	97850413056.61894
2018	104556286504.76483
2019	108835227272.72726
2020	100865952739.1805
2021	115502095459.83702
2022	116895414752.5353
2023	113590943515.30487