Year	current US$
1970	1494910044.372731
1971	1743182304.086835
1972	2163436898.542755
1973	3092506727.3856344
1974	4291946975.973488
1975	5406807063.727103
1976	6511891327.063741
1977	7715599324.704558
1978	9613144613.80812
1979	10980997523.390203
1980	11663292867.98179
1981	9850310734.463278
1982	8777642592.265583
1983	8258925443.786982
1984	7640107511.868194
1985	7832466879.5434475
1986	10610897597.977245
1987	14278603997.839006
1988	15638853538.123972
1989	16503921990.17199
1990	20075177450.507
1991	20188324867.099823
1992	22813750313.676285
1993	22236662779.850746
1994	24884018567.639256
1995	28388478379.85769
1996	28740846905.53746
1997	26483536310.329273
1998	27238608579.684372
1999	27848951738.30122
2000	25631171847.843193
2001	24657307834.37011
2002	27133427167.68632
2003	33181911407.686207
2004	39772905841.73756
2005	41314869446.22566
2006	44107805511.88229
2007	50748801792.15703
2008	55534402820.07811
2009	51552692573.164024
2010	51428659221.66676
2011	55479995688.716064
2012	52812651624.96095
2013	55663286388.78447
2014	56356198921.29392
2015	48152637550.54685
2016	50975766294.39701
2017	54242545433.17657
2018	58870582313.72545
2019	57462514640.78422
2020	53523652324.202484
2021	64858994849.998955
2022	59971014636.77066
2023	63706509372.74622