Year	constant 2021 US$
1960	33972832031.25
1961	40889968750
1962	40164019531.25
1963	42584218750
1964	41492851562.5
1965	44888750000
1966	44169558593.75
1967	44407808593.75
1968	38966519531.25
1969	37830609375
1970	41082691406.25
1971	43804589843.75
1972	42314769531.25
1973	49561640625
1974	60387398437.5
1975	68372757812.5
1976	64016988281.25
1977	61489089843.75
1978	71825242187.5
1979	72508796875
1980	79737500000
1981	79456140625
1982	73873562500
1983	71055640625
1984	75248000000
1985	79062937500
1986	76260539062.5
1987	73096273437.5
1988	72730179687.5
1989	75122476562.5
1990	89643302490.23438
1991	97902079101.5625
1992	87721348632.8125
1993	82760242675.78125
1994	86941203125
1995	78479613281.25
1996	75330570312.5
1997	72681269531.25
1998	79154901367.1875
1999	80049930664.0625
2000	80600627929.6875
2001	85979541992.1875
2002	96348806640.625
2003	98311612304.6875
2004	102379882812.5
2005	123126835937.5
2006	117631781250
2007	109914671875
2008	122505281250
2009	126218843750
2010	129179695312.5
2011	132120984375
2012	129078492187.5
2013	144090296875
2014	153436156250
2015	155085421875
2016	168054343750
2017	171318375000
2018	167409671875
2019	166353843750
2020	193242437500
2021	190067796875