Year	current US$
1960	13852022.271847919
1961	10801828.256599192
1962	8317363.6579427505
1963	9703491.992662972
1964	13861515.055407077
1965	21069296.17757843
1966	20739912.147845518
1967	23474430.004002668
1968	30461095.55508751
1969	38939715.912459865
1970	50633276.278626315
1971	59595413.80938091
1972	59023784.72182337
1973	78995257.92599814
1974	79408583.80029422
1975	98337358.60043888
1976	90731937.55355869
1977	121349823.27619132
1978	153492202.68421125
1979	207784726.87997842
1980	222261839.29628214
1981	205681907.57070732
1982	225297401.7509034
1983	150766893.85143733
1984	205805472.7101932
1985	247338455.09539586
1986	222807317.4865653
1987	238541726.24760377
1988	223654543.99443632
1989	202741076.02448297
1990	375946888.87936544
1991	417201321.36147016
1992	393976833.8006445
1993	510965440.1049935
1994	452687270.1379312
1995	593804003.9016371
1996	625667798.5089426
1997	616436708.452127
1998	665156777.4332063
1999	846151104.5866586
2000	725304886.0080601
2001	728426333.6695136
2002	827401656.4196203
2003	997331579.8094265
2004	1146038651.3521938
2005	1213941696.92857
2006	1270214595.8096907
2007	1800691335.9580739
2008	2167074921.8608255
2009	1940710262.9202619
2010	2199999385.4011188
2011	2229520238.4314218
2012	2662421032.368028
2013	3451240666.46384
2014	4175438841.5864124
2015	2815204783.04203
2016	3263416597.9004436
2017	3455561017.589135
2018	3889962074.2563095
2019	4264042869.8167143
2020	3117343141.9469333
2021	3700039683.3582935
2022	3773162284.075028
2023	4169448538.1040773