Year	current US$
1960	596250008.530915
1961	797079993.152991
1962	911209987.133741
1963	904349991.155788
1964	1009920000.7543
1965	1086740009.42707
1966	1164369995.7430398
1967	1282190018.35585
1968	1150010006.82078
1969	1125189997.7922401
1970	1168650008.3077698
1971	1348649994.73654
1972	1445550010.968
1973	1795889999.8906999
1974	2576280019.93895
1975	3487899963.79614
1976	3219110023.0217
1977	3835759994.9836698
1978	5195240028.3813505
1979	6636729982.376101
1980	7690850016.35551
1981	7461699984.07364
1982	7828009984.97009
1983	7558419929.75213
1984	8346560043.09654
1985	9178439918.9949
1986	10967649967.0744
1987	12735709895.3724
1988	14427490047.2164
1989	15425189891.8152
1990	17746099971.771202
1991	17737910018.9209
1992	19159499944.9253
1993	17277129899.9786
1994	19151559783.9355
1995	18589920097.3511
1996	16300660058.9752
1997	14854790021.8964
1998	14430289968.4906
1999	13192960071.563702
2000	13012830086.7081
2001	14261540022.85
2002	18970730117.797897
2003	24849039922.7142
2004	26448710002.8992
2005	32783320144.653297
2006	41157109867.0959
2007	36135010303.4973
2008	40215629882.8125
2009	44254090175.6287
2010	44223909770.9656
2011	47284939727.7832
2012	46714430057.5256
2013	47671100196.8384
2014	46447200042.7246
2015	44758079948.4253
2016	44302510124.2065
2017	49548889845.8481
2018	50887670280.4565
2019	53017349622.726395
2020	66884599784.851105
2021	62272819988.2507