Year	current US$
1960	1011819993.4437901
1961	1187530006.28948
1962	1082760004.90785
1963	990869999.390095
1964	903939999.163151
1965	765419997.379184
1966	721619991.729036
1967	529929996.01177907
1968	502480004.671961
1969	539469997.951761
1970	987740005.169064
1971	982580016.590655
1972	1102860006.10888
1973	2358879971.73145
1974	3744500036.41844
1975	5850059918.49303
1976	6064029945.31393
1977	7202869883.5969
1978	7337009946.89763
1979	8409989954.993131
1980	9093279933.51221
1981	8721089925.19975
1982	7242010019.77921
1983	6521499943.01796
1984	6222880018.59188
1985	7128060012.69817
1986	6733679945.4689
1987	6493980116.00971
1988	5162470106.00567
1989	5223829966.78352
1990	13342470145.4639
1991	13148729828.8345
1992	9317259943.72368
1993	7239709974.05052
1994	8482250066.280371
1995	6049049882.65038
1996	8352679906.606676
1997	6907199941.03908
1998	7314299970.865251
1999	6309470007.896426
2000	5660689940.929408
2001	5173360026.359561
2002	5612479944.229129
2003	8870149878.501888
2004	11311219825.26781
2005	28264389896.3928
2006	17181700250.6256
2007	18003889759.063698
2008	24222650215.1489
2009	13675179916.3818
2010	12273710113.048601
2011	15597039665.2222
2012	13656770118.7134
2013	25861659805.297897
2014	32511739837.6465
2015	19311190261.840797
2016	26468600036.6211
2017	28100299438.4766
2018	32133060180.6641
2019	27687310005.188
2020	28146759796.1426
2021	34886630493.1641