Year	current US$
1960	44869998.9318848
1961	42270000.4577637
1962	41279998.779296905
1963	88479995.7275391
1964	109709999.084473
1965	94790000.9155273
1966	179490005.493164
1967	166729995.727539
1968	139940002.44140598
1969	155819992.06543
1970	258190002.441406
1971	289839996.33789104
1972	331470001.220703
1973	345529998.779297
1974	496350006.10351604
1975	606840026.855469
1976	523250000
1977	475399993.89648396
1978	648169982.910156
1979	591909973.144531
1980	653630004.882813
1981	741799987.792969
1982	823299987.792969
1983	846750000
1984	1031849975.58594
1985	995839965.820313
1986	1034729980.46875
1987	1246809936.52344
1988	1566040039.0625
1989	1568239990.23438
1990	1685959960.9375
1991	1871709960.9375
1992	1921650024.41406
1993	1661530029.29688
1994	1455550048.82813
1995	1596619995.11719
1996	1525239990.23438
1997	1408410034.17969
1998	1368690063.47656
1999	1330199951.17188
2000	1318030029.29688
2001	1337449951.17188
2002	1593359985.35156
2003	1435369995.11719
2004	2076699951.17188
2005	2829459960.9375
2006	2530620117.1875
2007	3147020019.53125
2008	3333139892.57813
2009	3137100097.65625
2010	3886219970.70313
2011	4056290039.0625
2012	3918100097.65625
2013	3472919921.875
2014	3240969970.70313
2015	2948239990.23438
2016	2633540039.0625
2017	3103510009.76563
2018	3453060058.59375
2019	2988540039.0625
2020	3672189941.40625
2021	4813200195.3125
2022	4415389915.989717