Year	current US$
1960	24399999.6185303
1961	29860000.6103516
1962	46069999.6948242
1963	15300000.1907349
1964	20199998.855590798
1965	40970001.220703095
1967	63020000.4577637
1968	78739997.8637695
1969	87389999.3896484
1970	130339996.337891
1971	131399993.896484
1972	162250000
1973	210520004.272461
1974	277329986.57226604
1975	343029998.779297
1976	450779998.779297
1977	604099975.585938
1978	743859985.351563
1979	976250000
1980	1138530029.29688
1981	1072510009.76563
1982	1001419982.91016
1983	747270019.53125
1984	822349975.585938
1985	698529968.261719
1986	1123780029.29688
1987	1356380004.88281
1988	1500750000
1989	1453790039.0625
1990	1816739990.23438
1991	1709739990.23438
1992	1846209960.9375
1993	1806099975.58594
1994	1669959960.9375
1995	2299780029.29688
1996	2171350097.65625
1997	2031399902.34375
1998	2136689941.40625
1999	2057359863.28125
2000	2284260009.76563
2001	2272919921.875
2002	2495659912.10938
2003	2960580078.125
2004	2722689941.40625
2005	3682649902.34375
2006	4282180175.78125
2007	4643839843.75
2008	5199419921.875
2009	4797839843.75
2010	4841299804.6875
2011	4336260253.90625
2012	3857450195.3125
2013	3646879882.8125
2014	4027090087.89063
2015	4162899902.34375
2016	3157600097.65625
2017	3533760009.76563
2018	3745750000
2019	3387000000
2020	3662360107.42188
2021	3765800048.82813
2022	864009998.258203
