Year	constant 2015 US$
1960	524779666.90681946
1961	573463798.5630757
1962	716317067.798948
1963	790553191.0447932
1964	1055752513.1765591
1965	1226208495.6360273
1966	1380668849.2868872
1967	1380299719.441201
1968	1204593889.5427763
1969	1385713624.5653303
1970	1401832296.5837567
1971	1448014547.8961172
1972	969909305.4292434
1973	1982473620.8946548
1974	2788530267.548395
1975	1650625845.585894
1976	1689753614.417922
1977	2890943306.1105185
1978	1186711596.8862455
1979	-518176343.23006916
1980	1431321673.7273476
1981	2188694188.739251
1982	1803773737.4670916
1983	1961269159.1945043
1984	1978495220.8941395
1985	1966683064.3186333
1986	1942402520.138665
1987	1912502998.674047
1988	1350236140.2193344
1989	1168900304.3224318
1990	1021117440.4058659
1991	1144977996.4420326
1992	1200337370.3834267
1993	979873435.6986176
1994	1239096866.0206277
1995	1420050822.1602502
1996	1714775885.8616695
1997	2079393840.879658
1998	2149310757.218938
1999	2807851503.0368924
2000	2334738642.4227576
2001	2138811267.4273381
2002	1987054674.940509
2003	1966524846.2582026
2004	2176640885.1534405
2005	2423019762.9616857
2006	2419436525.2238536
2007	2857060889.116168
2008	3141916662.2869763
2009	2149425247.1891913
2010	2379803164.4234624
2011	3073891403.0223055
2012	3247413462.672016
2013	3360260449.969129
2014	3345488015.488983
2015	4270530656.5701036
2016	4259289194.233993
2017	4310812563.274501
2018	3228605631.455831
2019	2367985216.8393464
2020	2661560329.3862405
2021	3349955776.1610274
2022	3250512070.880047
2023	3900427127.3504543