Year	current US$
1961	29741476.389160927
1962	35270342.49809246
1963	34317088.93534543
1964	35079689.30467972
1965	38130099.04818542
1966	38755999.016404934
1967	45475864.535706066
1968	47194755.700385116
1969	47902223.675564684
1970	53340246.37255837
1971	57029505.34881165
1972	133106293.08845924
1973	157860290.75992534
1974	251014221.67751628
1975	293406801.69588846
1976	416962601.31379485
1977	406019478.56717294
1978	360360615.5862443
1979	393063712.6327832
1980	482428347.64412135
1981	572218352.7025003
1982	648640501.3447193
1983	614032310.2178787
1984	542696590.8362463
1985	563391027.8134527
1986	650009596.7865546
1987	618370338.4470116
1988	615941854.9463247
1989	568480362.7409663
1990	632068929.2014539
1991	603327625.090868
1992	431906454.0500479
1993	382686042.55274767
1994	544298175.1972486
1995	667898122.7546043
1996	667182821.7802625
1997	608286588.1176264
1998	547348702.4834962
1999	525231930.6135714
2000	594773875.7868476
2001	613989584.9914155
2002	568870240.532493
2003	742377025.4343611
2004	1227308582.0459573
2005	1805119194.2771084
2006	1584465517.4981384
2007	1979303956.3872337
2008	2734283391.4202623
2009	2110388243.0116758
2010	2683928047.4828444
2011	3267485663.4215207
2012	4206931498.213202
2013	4106332167.14544
2014	3574551160.2939963
2015	2907777571.107451
2016	2510108455.912767
2017	3013092796.007824
2018	3928133977.997337
2019	4033369861.076744
2020	3747908631.5646706
2021	4468397305.373855
2022	5360435747.279989
2023	5453401337.719918