Year	current US$
1960	20316323067.192177
1961	19819287221.127068
1962	19204785882.676617
1963	22320130354.71826
1964	23569074221.046146
1965	26908761656.53748
1966	29767249128.659294
1967	31137689570.430515
1968	35566605924.897766
1969	39287063848.88884
1970	45569128494.040146
1971	49596122188.874504
1972	58362745115.97379
1973	89564875208.59285
1974	141877688665.61127
1975	142550618513.98547
1976	159440214011.71133
1977	181352467662.00943
1978	217292125783.13907
1979	291032062731.277
1980	364680210704.2005
1981	400805940971.4719
1982	384256215068.7966
1983	379597438153.1209
1984	404660511437.1384
1985	404034812937.81934
1986	414766991065.6295
1987	498254095197.95917
1988	639962815496.8096
1989	730798815067.0911
1990	809450362993.1362
1991	887099013927.588
1992	965634412482.9271
1993	1066363147246.7386
1994	1236851918378.1814
1995	1526448510353.4297
1996	1627351168266.417
1997	1639549000703.6123
1998	1373662147076.9624
1999	1484136274311.9417
2000	1810890655600.162
2001	1696550642541.5854
2002	1785322804933.1104
2003	2084550968641.7893
2004	2610713140305.4087
2005	2991334972055.04
2006	3426746031973.863
2007	3910657279212.5356
2008	4641950536752.351
2009	3825097520563.3643
2010	4974614817164.828
2011	6090755296666.02
2012	6429641270707.593
2013	6623683028150.826
2014	6770353118980.839
2015	6006395092912.938
2016	5809150280971.804
2017	6505567687776.121
2018	7315027650161.526
2019	7111765281785.658
2020	6528259558737.253
2021	8205026515728.303
2022	8864672876869.566
2023	8625147321968.039