Year	current US$
1960	264959999.21113297
1961	802119995.940477
1962	789400012.366474
1963	815989999.2980059
1964	696430004.01184
1965	875130003.653467
1966	940760018.039495
1967	779209995.150566
1968	837289994.407445
1969	729000002.868474
1970	744180000.498891
1971	661159997.940063
1972	674289999.842644
1973	725270001.171157
1974	831069991.350174
1975	1017099996.38796
1976	999050004.422665
1977	956149996.6084961
1978	1204720002.05517
1979	1492950017.21382
1980	1815760006.5469701
1981	1981950016.20054
1982	2196420003.77178
1983	2398649996.28067
1984	2534180015.5341597
1985	2997460012.9202
1986	3304279988.40809
1987	3940789992.69009
1988	4057460018.6348
1989	4514629998.44551
1990	4943570031.88133
1991	5679479971.2598295
1992	5229580079.31709
1993	5131609999.44806
1994	5586979917.52625
1995	6049030018.98527
1996	6997509975.001214
1997	5077199960.0082655
1998	5156639980.003238
1999	5643310010.388496
2000	4671979977.861043
2001	5573090035.751465
2002	4885070049.643513
2003	5888100053.250791
2004	6594370013.0730915
2005	6397829979.53892
2006	7014379884.45163
2007	6674550062.17957
2008	8968239969.25354
2009	8622280060.17208
2010	9626160144.80591
2011	9934470008.67128
2012	10028189943.0752
2013	10294329924.464201
2014	9962540119.8864
2015	10133120064.9738
2016	11188710220.0389
2017	8494269969.344139
2018	10321349997.5204
2019	8661500052.45209
2020	12180740043.6401
2021	11848990024.5667