Year	current US$
1960	452628709.26470596
1961	475327540.50420177
1962	445915395.32921803
1963	401354271.04201686
1964	405529192.18487394
1965	485122994.6008403
1966	502368228.59243697
1967	559275604.4032922
1968	569726904.5378151
1969	576361745.7983193
1970	660643350.3361344
1971	652127438.1618887
1972	682889314.3216081
1973	795661200.1874999
1974	1198513211.082707
1975	1162011206.6476464
1976	1052996951.1296076
1977	1271487722.7733936
1978	841415724.2793082
1979	916395653.0507386
1980	1119568807.6225045
1981	1234740284.1558442
1982	1268465275.7808747
1983	1471615363.833404
1984	1743934672.4056604
1985	1677404511.8188512
1986	1758550355.7815845
1987	1824384640.6589673
1988	1862082394.4985855
1989	1813614001.8030515
1990	2143485925.0873687
1991	2438015566.8358717
1992	2534655740.3604836
1993	2572336206.5397353
1994	2809159625.6576285
1995	3015088050.731707
1996	3132420047.041795
1997	3312463907.4419394
1998	3342925531.419705
1999	3245318936.862967
2000	3254292790.546682
2001	3160440916.5174575
2002	2361305261.3422537
2003	2498154786.572731
2004	2591866785.2554603
2005	2884636815.920398
2006	3205877650.54341
2007	3779531556.44981
2008	5447184549.474202
2009	5339033090.349129
2010	5305597462.616022
2011	6459028532.736989
2012	5572578355.581469
2013	6101990987.288035
2014	6668889924.561148
2015	6995980265.649052
2016	6391204159.655624
2017	7012795074.995993
2018	7174037556.023115
2019	6459148420.577536
2020	6956220237.229286
2021	7788717591.639948
2022	6300157818.226188
2023	6985602371.180196