Year	current US$
1960	225000000
1961	236363636.36363637
1962	254545454.54545456
1963	186666666.66666666
1964	223529411.7647059
1965	217241379.31034482
1966	207407407.4074074
1967	210476190.47619048
1968	194396551.72413793
1969	243145161.29032257
1970	325000000
1971	320967741.9354839
1972	325988700.56497175
1973	376896149.35822636
1974	691074681.2386156
1975	717441860.4651163
1976	736432465.1726227
1977	932257370.3464601
1978	1038801261.829653
1979	1520107170.1964788
1980	2096660421.029428
1981	2102705457.2408042
1982	1587121923.049159
1983	1204328601.3497791
1984	1036766679.1905963
1985	998457827.5139389
1986	1191819538.5448446
1987	1414997206.4809642
1988	1456747009.12395
1989	1493668481.498057
1990	1682744697.6615329
1991	2001561707.7777605
1992	2527397074.5950494
1993	2934260605.9437337
1994	3561674785.687393
1995	3686020003.150102
1996	4074053357.6154943
1997	4853524479.833524
1998	4879194086.431357
1999	4386374776.220755
2000	4568223556.629017
2001	4076272834.0024343
2002	2640670228.2597513
2003	2930315874.7255235
2004	4018907625.471192
2005	4943843928.982866
2006	6252911446.753711
2007	7167879856.120472
2008	10893438974.64533
2009	8600719067.361935
2010	10636951485.036224
2011	13504292327.182144
2012	15804109317.436852
2013	16171486174.327717
2014	15709177870.195013
2015	13180179645.554583
2016	12380702429.498783
2017	13291653157.30008
2018	13963972847.687494
2019	13493657625.41862
2020	11340782262.670086
2021	15093986602.44258
2022	18861286248.288456
2023	18719846971.746494