Year	current US$
1968	12931117910.157284
1969	14216555987.86135
1970	16899082895.670462
1971	18314544915.14226
1972	23418970166.440212
1973	25680751885.400192
1974	61171328914.071144
1975	69002077470.66087
1976	101290234564.28787
1977	120799172476.03299
1978	124549812947.26868
1979	121072243643.87846
1980	171810042050.2863
1981	168803820665.8493
1982	168030603709.49628
1983	181613906829.92978
1984	175612169563.81387
1985	148166738336.82904
1986	145828823363.1435
1987	120611529342.3443
1988	119437058459.66937
1989	112678903854.69391
1990	228094906508.2552
1991	131867212126.03955
1992	145133634043.76318
1993	150346458325.82187
1994	146485582887.3498
1995	175595638079.68842
1996	200919230966.8608
1997	190927054080.47922
1998	201273448687.28357
1999	213135135339.34253
2000	221300051698.45044
2001	235018872240.48355
2002	232356958530.04907
2003	269845249343.82745
2004	324284233384.7932
2005	372014461665.2731
2006	453066720136.18146
2007	594355691601.7308
2008	764326823325.1796
2009	717968595762.7415
2010	801265819131.1578
2011	897816720467.4806
2012	949727169661.6648
2013	927688639666.4404
2014	976703762610.3755
2015	909717725618.7719
2016	911721021747.9889
2017	944507324542.7051
2018	954262064185.697
2019	968189734806.7673
2020	858607032931.4988
2021	986660396709.9426
2022	1155477310323.6455
2023	1118605361557.3164