Year	constant 2021 US$
1960	6793360034.04111
1961	6417450080.60336
1962	6718070032.06015
1963	6450480002.85774
1964	5625759956.777101
1965	7793750072.95609
1966	8926790070.59336
1967	10297290078.0439
1968	10117559850.6033
1969	10938360152.3787
1970	11034490062.0729
1971	11997249842.822601
1972	12290069986.902199
1973	11190539946.4965
1974	11965329976.2383
1975	9413729965.850712
1976	7910010039.65735
1977	7352400063.93008
1978	8259739856.548609
1979	8795620094.26206
1980	9110889978.431171
1981	10351749960.2884
1982	9740500080.097471
1983	9863400070.138279
1984	10117249960.728
1985	10379969859.134401
1986	10230680030.3161
1987	10240680116.5044
1988	10714040087.340399
1989	11417459827.847801
1990	11541750020.3848
1991	10677219986.1854
1992	12756370003.0986
1993	12353129929.8741
1994	12117930041.1418
1995	11399130152.721
1996	9953860060.32676
1997	9284220007.419584
1998	11649499827.027342
1999	12464239879.87636
2000	11568960221.02232
2001	10993760026.22768
2002	10766950054.76475
2003	9253690122.753378
2004	8924850055.39656
2005	10373529898.6435
2006	8531520051.002501
2007	8665169972.41974
2008	8339029965.4007
2009	9611239915.37094
2010	9155270021.4386
2011	6784719940.18555
2012	8227229968.07098
2013	11195120081.9016
2014	8868570066.45203
2015	9015719944.00024
2016	8214610124.588011
2017	8666000048.16055
2018	8167589973.44971
2019	7250459940.91034
2020	12714009916.782398
2021	9819090023.04077