Year	current US$
1960	2753697745.051949
1961	3026767552.5822425
1962	3301403462.643678
1963	3532721934.7095537
1964	3881192365.3846154
1965	4385851076.923077
1966	5275528663.461538
1967	5644903975.961538
1968	6087115225.961538
1969	6701057576.923077
1970	7096153798.076922
1971	7370191951.923077
1972	8149027109.529511
1973	10794667434.46095
1974	13698090174.071758
1975	14882770593.979597
1976	16941090934.687927
1977	19720489180.86345
1978	23829540408.99576
1979	27063114880.226864
1980	32090088879.59687
1981	34294490767.21311
1982	36027949354.690216
1983	39751452444.84854
1984	41313242303.5488
1985	38252597435.23363
1986	42243618506.53505
1987	49664855177.485374
1988	60687965653.190865
1989	71329885056.62157
1990	84097209700.57135
1991	96721515527.32231
1992	109344961863.97171
1993	126723234413.04056
1994	144068664624.09152
1995	166006653936.54053
1996	178425780727.32077
1997	145705501031.84082
1998	109263635846.44038
1999	122785641250.87508
2000	123900114886.38394
2001	116932294140.02103
2002	129579498251.9005
2003	146056549105.90112
2004	165383729445.38513
2005	180829127106.25253
2006	213513981039.48254
2007	253993974943.23355
2008	280756506237.5536
2009	271838809880.73944
2010	326815388832.2826
2011	361875003955.9903
2012	379342666424.5629
2013	393467486312.14764
2014	386381481702.8154
2015	380594916735.61774
2016	393948949386.68365
2017	435913240648.2759
2018	482264933708.6036
2019	523977887377.2104
2020	489367035950.0466
2021	488672219203.9158
2022	481390360909.7184
2023	502920778919.96967