Year	current US$
1960	0
1961	0
1962	0
1963	0
1964	2900000.09536743
1965	16570000.3728271
1967	19669999.957084697
1968	12529999.967664499
1969	14339999.6683002
1970	31809999.9856204
1971	33089999.4820356
1972	50739999.866113104
1973	69610000.4483014
1974	111079998.880625
1975	168770002.175122
1976	192169999.755919
1977	294979993.91332304
1978	387209997.396916
1979	390019995.57763296
1980	546850001.869723
1981	532520007.43709505
1982	444940005.76808995
1983	331590001.249686
1984	380999998.157844
1985	306039997.67825
1986	515090003.34516203
1987	591360001.619905
1988	640400004.537776
1989	575959995.729849
1990	787679991.938174
1991	494339997.90065
1992	658150004.651397
1993	489799994.63819003
1994	524420003.835112
1995	725240003.628656
1996	670180001.148954
1997	580479996.683076
1998	641150002.676994
1999	354439995.506778
2000	437409999.150783
2001	731140000.589192
2002	728029997.255653
2003	641159995.540977
2004	481169997.051358
2005	1035960006.1476201
2006	919219993.848354
2007	1058009984.34797
2008	774480005.230755
2009	696820000.514388
2010	565250002.872199
2011	531239999.258891
2012	339579999.528825
2013	281959998.447448
2014	230480003.517121
2015	224729997.21393
2016	222150001.712143
2017	231590000.67412898
2018	280690005.02862
2019	181830001.14373899
2020	168470003.010705
2021	172549998.944625
2022	355469993.39759326