Year	constant 2021 US$
1960	31598441406.25
1961	38785257812.5
1962	38281441406.25
1963	40136160156.25
1964	40226667968.75
1965	42265710937.5
1966	41838671875
1967	42532902343.75
1968	37299289062.5
1969	35617429687.5
1970	39470039062.5
1971	42232082031.25
1972	40614609375
1973	48455000000
1974	60337058593.75
1975	67532710937.5
1976	62077410156.25
1977	58506410156.25
1978	71071531250
1979	70632843750
1980	79132468750
1981	78663289062.5
1982	73415375000
1983	69203281250
1984	73900148437.5
1985	76813507812.5
1986	73959843750
1987	72427710937.5
1988	72706406250
1989	75125828125
1990	86001718750
1991	87713750000
1992	80759242187.5
1993	77239265625
1994	79499820312.5
1995	71017648437.5
1996	67624500000
1997	66801890625
1998	70845929687.5
1999	72664750000
2000	72866367187.5
2001	80213757812.5
2002	92361585937.5
2003	94509210937.5
2004	97602460937.5
2005	129545265625
2006	123924468750
2007	107395250000
2008	122841507812.5
2009	122705789062.5
2010	136623453125
2011	139874984375
2012	136875921875
2013	152613953125
2014	163020703125
2015	164684390625
2016	178111906250
2017	181376750000
2018	177684453125
2019	176238718750
2020	204125859375
2021	201868890625
2022	250976812500