Year	constant 2015 US$
1960	3354164740.677677
1961	3399566474.433941
1962	3505686651.4375014
1963	3604693096.9678693
1964	3704904921.8809757
1965	3683683565.5842657
1966	3783844680.2083626
1967	3273696071.1708055
1968	3631796149.8617806
1969	3694202154.4796534
1970	3741439076.515912
1971	4087152906.426757
1972	4023584179.402516
1973	4000589127.028116
1974	4374508741.752473
1975	5120053322.342957
1976	4749374326.687793
1977	5686059776.992546
1978	6317984486.641173
1979	6792462791.823468
1980	5824168275.056681
1981	6906492477.895033
1982	7873848131.314118
1983	7815509877.638362
1984	7863614596.937588
1985	8321351281.8323345
1986	10326283112.94607
1987	10798988711.304298
1988	9525061313.516441
1989	8254715652.85379
1990	8079368459.295028
1991	7884360403.356308
1992	7107032643.759224
1993	8249085671.195764
1994	8613793337.998299
1995	8666149005.645142
1996	9138845808.240936
1997	9851240116.010715
1998	10475147522.937088
1999	11110564350.874285
2000	11911333455.683716
2001	12523577767.231607
2002	13017250686.345892
2003	13910566301.6417
2004	14724664757.38806
2005	15523648812.633966
2006	15927482847.158503
2007	16264754342.308874
2008	17130407394.649172
2009	17915514955.586
2010	18204442999.602493
2011	18809661591.82598
2012	19781428580.073357
2013	20917683050.68164
2014	22108270392.863567
2015	23532186346.23407
2016	24097019083.22221
2017	25230071184.769043
2018	26522534298.3714
2019	27597373534.818756
2020	27667901837.74051
2021	28976944023.365593
2022	30184974891.17635
2023	31085076437.389946