Year	constant 2021 US$
1960	7978649961.56096
1961	7190669943.57109
1962	8137759930.610661
1963	11290699968.919199
1964	13217159826.1371
1965	13532210126.6384
1966	12305109502.0771
1967	13605680241.9201
1968	9531800182.10411
1969	8608330158.05483
1970	8687290267.22908
1971	9621320273.9954
1972	7437520017.86232
1973	8217699995.27931
1974	10869909949.7795
1975	14634949784.2789
1976	13707780042.6483
1977	9703079916.95404
1978	9960729935.64606
1979	10248739997.8638
1980	12870940061.569199
1981	11427130044.9371
1982	11631810056.6864
1983	10962529895.7825
1984	10978539831.1615
1985	10567030132.2937
1986	10575449904.9187
1987	8899429969.7876
1988	9592229949.95117
1989	9669070037.8418
1990	8270689834.59473
1991	10665649879.455599
1992	8489930068.96973
1993	6638750122.07031
1994	8001360061.64551
1995	5236500026.70288
1996	5606900054.93164
1997	5628799945.8313
1998	5863899906.15845
1999	5149610031.12793
2000	5067410030.36499
2001	8378849960.32715
2002	9375160009.384161
2003	7310399982.45239
2004	8330980049.133301
2005	10891620021.6413
2006	10304189819.3359
2007	9804359973.90747
2008	10741080230.7129
2009	12605910030.365
2010	15962559982.299799
2011	16983039768.219002
2012	14344110031.127901
2013	14262109809.8755
2014	15976690074.9207
2015	17700840038.2996
2016	15716150127.4109
2017	16552969860.0769
2018	12999279899.5972
2019	16088739929.1992
2020	17378520263.6719
2021	17997349998.4741
2022	16809719955.4443