Year	current US$
1960	377999848.8000605
1961	366799853.2800587
1962	396199841.5200634
1963	442399823.0400708
1964	515199793.92008245
1965	529199788.3200847
1966	573999770.4000919
1967	649599740.1601039
1968	730799707.680117
1969	956199617.520153
1970	1079399568.2401726
1971	1208024977.034942
1972	1212397151.1268659
1973	1560610929.4641325
1974	1796970316.8760679
1975	1913434337.4243414
1976	1915900478.9751196
1977	2392000598.0001493
1978	2948600737.150184
1979	3711300047.6234026
1980	4825161716.103817
1981	5257646320.16035
1982	5780905788.8261
1983	6097298267.659994
1984	5802300178.203822
1985	4601388717.511526
1986	5309334836.44868
1987	6873660692.140058
1988	8223119920.755428
1989	9200522977.095541
1990	10306026967.66269
1991	10347606122.445284
1992	10052895953.526175
1993	10799812225.077744
1994	11820723116.324839
1995	13163738925.335358
1996	12207429543.402966
1997	12709089180.85696
1998	12218981513.974318
1999	12244896623.020864
2000	12093959677.386816
2001	10662105954.097143
2002	9998247752.27031
2003	15517633169.322605
2004	22396265581.04232
2005	26734743042.032116
2006	29141485943.614967
2007	31958599731.880463
2008	28290000160.993114
2009	27110200368.812862
2010	34697486293.95476
2011	40204337285.15058
2012	40182828049.06272
2013	37954550164.76343
2014	36431891114.307846
2015	34432227250.268616
2016	32002202762.971825
2017	36486415431.649
2018	40319630017.57755
2019	39245863926.91744
2020	31922513405.194267
2021	41511155463.29652
2022	41321109941.49923
2023	37494517687.67936