Year	current US$
1960	23700000.762939498
1961	28869998.931884803
1962	44979999.5422363
1963	13800000.1907349
1964	16899999.6185303
1965	33099998.4741211
1967	42860000.6103516
1968	58090000.1525879
1969	46560001.373291
1970	106580001.831055
1971	108659996.032715
1972	143830001.831055
1973	183410003.66210902
1974	230119995.117188
1975	288720001.220703
1976	370809997.558594
1977	472029998.779297
1978	566380004.882813
1979	663599975.585938
1980	829830017.089844
1981	782049987.792969
1982	722160034.179688
1983	463779998.779297
1984	538779968.261719
1985	431190002.441406
1986	685410034.179688
1987	847409973.144531
1988	960169982.910156
1989	941700012.207031
1990	1202540039.0625
1991	781090026.855469
1992	946470031.738281
1993	904769958.496094
1994	805669982.910156
1995	1190229980.46875
1996	1103040039.0625
1997	988510009.765625
1998	1105780029.29688
1999	780909973.144531
2000	904739990.234375
2001	1312690063.47656
2002	1257829956.05469
2003	1108359985.35156
2004	1027910034.17969
2005	1777329956.05469
2006	1309449951.17188
2007	1467199951.17188
2008	1346489990.23438
2009	1166219970.70313
2010	875239990.234375
2011	792080017.089844
2012	461519989.013672
2013	353649993.89648396
2014	288910003.66210896
2015	414500000
2016	417440002.441406
2017	296209991.455078
2018	386489990.234375
2019	254229995.727539
2020	265649993.896484
2021	272750000
2022	398689993.6236439