Year	current US$
1960	53426872.50509136
1961	61975054.548415706
1962	70200150.43965821
1963	71423855.7083074
1964	83664248.04522914
1965	74267243.26448539
1966	77743900.65824133
1967	81707046.17394589
1968	84826312.10733142
1969	83474196.3602527
1970	103472052.85155645
1971	105681233.39849627
1972	113479622.6129606
1973	152093518.14977938
1974	174903172.21434194
1975	223504931.34104386
1976	228499255.5822044
1977	265386205.90150785
1978	311536381.10705394
1979	347871418.2934765
1980	298183134.66250914
1981	198725614.5868399
1982	112596761.81511982
1983	195963410.3943076
1984	221072311.09274346
1985	323630060.7312693
1986	377752728.1198186
1987	423865233.4087724
1988	446324642.95514226
1989	450301764.71992034
1990	485189439.9212578
1991	457982402.6925906
1992	466958173.7441123
1993	429082121.05244315
1994	411559919.5148018
1995	488251564.6758746
1996	467199422.745387
1997	475289630.239498
1998	515889625.0460472
1999	494007543.6199273
2000	481549082.9103993
2001	849538448.778265
2002	2269814007.741271
2003	1611292717.1364958
2004	2245029718.4330525
2005	2518057573.6074195
2006	3590201333.634812
2007	3479736756.2391415
2008	3907578538.7652016
2009	3899421940.672132
2010	4645436721.939997
2011	5088489833.814391
2012	5207595369.622069
2013	5062672012.88657
2014	5919969143.546689
2015	4003726597.4395523
2016	3736368579.632848
2017	3970361147.0976615
2018	4272465296.5560904
2019	4280250489.164299
2020	4501989112.643557
2021	5210833467.107156
2022	5008659290.165924
2023	6321231738.066904