Year	current US$
1960	885519991.159439
1961	1068950007.3194499
1962	978030003.219843
1963	862160000.20504
1964	784469999.790192
1965	624239994.581789
1966	582559992.790222
1967	441579997.003078
1968	421750002.61329097
1969	466489996.204153
1970	896840005.874634
1971	879450014.591217
1972	982050004.005432
1973	2104389977.98041
1974	3392970036.0298204
1975	5174799900.29335
1976	5052499912.7388
1977	5920189859.39026
1978	6244309967.04102
1979	6775279912.71019
1980	7731629959.58328
1981	7414129949.27168
1982	6009200023.770329
1983	4753039959.90753
1984	4593689984.7984295
1985	4942089989.185329
1986	4514709959.030149
1987	5048630068.77899
1988	3907240048.40851
1989	3996959957.1228
1990	11725540134.429901
1991	11248909871.101398
1992	7077589920.28236
1993	5676859936.7141695
1994	6934940009.35555
1995	5498919887.54272
1996	5799829890.728
1997	5431319965.83939
1998	5441200032.23419
1999	5223479983.32977
2000	4668359943.38989
2001	4896110022.544866
2002	4674679945.468902
2003	8195879886.627202
2004	10634699821.4722
2005	28220239894.8669
2006	17103330251.6937
2007	17920979770.6604
2008	24148000213.623
2009	13530689910.888699
2010	12295320113.6589
2011	15597039665.2222
2012	13656770118.7134
2013	25861659805.297897
2014	32511739837.6465
2015	19311190261.840797
2016	26468600036.6211
2017	28100299438.4766
2018	32133060180.6641
2019	27687310005.188
2020	28146759796.1426
2021	34886630493.1641