Year	constant 2021 US$
1960	2573129969.5223603
1961	3004889975.07095
1962	3657579998.73161
1963	3341750000.95367
1964	4278920054.1973095
1965	4777140075.68359
1966	4924450050.354
1967	4058179979.32434
1968	4100620033.26416
1969	3740330009.99689
1970	3880009973.5856104
1971	4329790041.029449
1972	4975310064.9118395
1973	6873070086.82564
1974	10815980132.103
1975	11815920120.2393
1976	11261400085.0916
1977	12384850037.4556
1978	12305890021.3242
1979	15949600028.5149
1980	15902980087.2803
1981	15975100039.4821
1982	15436910070.4193
1983	14666040076.2558
1984	14744920140.2664
1985	17147999828.6441
1986	15498200110.435501
1987	15354749979.496
1988	14492560074.925402
1989	14263270139.694199
1990	16456069840.908102
1991	15079499934.196499
1992	13984990011.3344
1993	13730809926.9867
1994	14135979918.4799
1995	11202240047.4548
1996	10149550155.639599
1997	10590529960.632301
1998	10364059921.264599
1999	9862289981.84204
2000	10223999900.8179
2001	13091989799.4995
2002	17746079902.6489
2003	22690139709.4727
2004	20215029937.744102
2005	21647669662.4756
2006	23140949872.9706
2007	21769770027.160603
2008	25311190292.3584
2009	26613689918.5181
2010	32061380172.7295
2011	33178709899.9023
2012	31684510032.6538
2013	33444880058.288605
2014	33632369850.1587
2015	37420390029.907196
2016	41662520004.2725
2017	46180930297.8516
2018	50904519531.25
2019	49122440193.1763
2020	56076910614.0137
2021	51724439527.5116
2022	46901669906.616196