Year	current US$
1960	142574423.48008385
1961	148960167.7148847
1962	156325995.8071279
1963	169134171.9077568
1964	185378406.7085954
1965	284194316.11367774
1966	304073918.5216296
1967	317513649.7270055
1968	338373232.5353493
1969	367212655.7468851
1970	388632227.35545295
1971	417611647.7670447
1972	454570908.5818284
1973	482157107.0573576
1974	540062731.6794982
1975	453888888.8888889
1976	461300000
1977	552470588.2352941
1978	493826086.9565217
1979	644050000
1980	291210000
1981	465000000
1982	709000000
1983	681000000
1984	1126384280.6049898
1985	1206719828.7556472
1986	1220452937.5676641
1987	2006273087.2983062
1988	2062083333.3333333
1989	1642612906.2449372
1990	1311994408.5582414
1991	1080982016.8691185
1992	961030707.2080133
1993	1066973601.2004462
1994	1336329479.0558786
1995	1917074957.7408712
1996	2125286575.5285726
1997	2303335371.6107335
1998	2385677411.2177377
1999	2268819003.318015
2000	2766540505.232501
2001	2615358046.2506557
2002	2949731967.255627
2003	3074703541.3220305
2004	4131101617.4566445
2005	4186499336.006796
2006	4701447083.757738
2007	5585409087.492492
2008	6771954806.748045
2009	11213799877.053211
2010	11945936102.8959
2011	12758783058.786758
2012	12135874164.865435
2013	12878307348.607416
2014	14364440820.245316
2015	14347137774.599943
2016	12976037863.195032
2017	13367235876.57659
2018	14270208402.576788
2019	15199038981.814945
2020	16107247284.312511
2021	16960251773.91058
2022	18978936780.1491
2023	20881075674.02912