Year	current US$
1960	256919996.090233
1961	320840001.07646
1962	427840004.175901
1963	379369997.903705
1964	501079993.92598903
1965	586240013.1225591
1966	628500001.66893
1967	520620008.46862805
1968	542739999.02606
1969	515410001.25370896
1970	541440008.237958
1971	658079996.725544
1972	843740003.660321
1973	1347139993.96004
1974	2363330000.10252
1975	2979139966.60709
1976	2908930042.11783
1977	3488609931.79679
1978	4000820072.77012
1979	5862349850.41618
1980	6417239998.3406105
1981	6081039999.485021
1982	5734680015.56396
1983	5373879909.99222
1984	5194470003.84331
1985	6176419902.3433
1986	6865059999.34673
1987	7972240025.758739
1988	7999359966.99333
1989	7814689955.71136
1990	10251759907.2456
1991	9665469967.8421
1992	9395429983.37746
1993	8870049876.21307
1994	9618879909.51538
1995	8408490032.196039
1996	7448360027.31323
1997	7116099983.21533
1998	6881379932.40356
1999	6581729957.58057
2000	6337279983.52051
2001	7849299942.0166
2002	11247270141.6016
2003	16449379802.703901
2004	16105100185.3943
2005	17603400180.8167
2006	19457679971.6949
2007	19895059967.041
2008	23975409774.7803
2009	24290990242.004402
2010	29689559516.9067
2011	32435240028.3813
2012	30788620246.8872
2013	33069049980.163605
2014	33624880249.0234
2015	34195090103.1494
2016	38563490447.998
2017	43234660118.103
2018	48319000274.6582
2019	45867230262.756294
2020	52985440189.3616
2021	51724439527.5116
2022	46159330022.8119