Year	current US$
1960	3743805557.3288536
1961	4113188163.7967243
1962	4304913711.465771
1963	4618647397.732046
1964	5191095684.166317
1965	5904242167.156657
1966	6530659168.416633
1967	7414511761.444772
1968	7976000544.309114
1969	8608117913.481731
1970	9933511425.451492
1971	10602710262.914743
1972	9280297318.408815
1973	6304783732.147924
1974	8825591919.19192
1975	11135306065.656565
1976	13023880818.181818
1977	14945208942.424242
1978	17630257535.353535
1979	19454758401.0101
1980	23372307730.30303
1981	27838462487.878788
1982	30403618323.222748
1983	28268946910.23622
1984	30706971613.238346
1985	30636427793.53562
1986	31255404416.615005
1987	32653162967.666767
1988	37638850724.010254
1989	39282053646.923454
1990	39037984570.65395
1991	44456518200.28924
1992	47608476797.47117
1993	50299060705.32445
1994	50683426963.78962
1995	58850709437.57368
1996	61353055619.3932
1997	60247042295.85307
1998	59853183245.96386
1999	61165857029.76314
2000	97464802344.52766
2001	94985618479.90381
2002	95604302809.35368
2003	110160913740.82295
2004	130009048339.41289
2005	142822552960.36227
2006	159204385506.3602
2007	180558869997.46017
2008	198280748583.8536
2009	182930783856.46567
2010	193427623453.12134
2011	227569579578.82294
2012	246861967230.6788
2013	254988233264.07004
2014	267435475356.81412
2015	295364590988.18115
2016	308284997722.84357
2017	334191536057.05066
2018	350691167594.25525
2019	315299473058.39874
2020	294966609817.7916
2021	344116647445.14844
2022	369539958882.30774
2023	332603455307.2165