Year	constant 2015 US$
1960	571761943.6157644
1961	636413430.8289669
1962	697024252.1740642
1963	874815922.1695398
1964	935426742.8924444
1965	1052607624.311642
1966	976053541.4646726
1967	1225455125.101052
1968	1254418264.7891212
1969	1315084667.0293202
1970	1387529335.2326574
1971	1503994254.8665745
1972	1698841422.1033826
1973	1841227053.551866
1974	1678168414.5794332
1975	1964269043.767997
1976	2254028338.1800694
1977	2509964359.54254
1978	2918389973.744676
1979	2686336043.3579745
1980	2899802094.93223
1981	3262180464.196111
1982	3059481119.6505446
1983	3737729404.344639
1984	3626884256.130936
1985	3463329526.8919168
1986	3934227621.698557
1987	3262568034.7104015
1988	2973052909.689148
1989	3605180311.0638638
1990	3496660585.5211043
1991	3470802273.834419
1992	3456436309.3776655
1993	3417694501.464197
1994	3154600627.2024155
1995	3195794055.4875546
1996	3134454641.221716
1997	3135888327.2570024
1998	3839249984.883334
1999	3760449823.8764544
2000	3809489709.237406
2001	3972684256.265758
2002	4065685483.8456535
2003	4087711107.9680943
2004	4174112944.214882
2005	4351783885.7914915
2006	4683390208.099862
2007	4892926603.366384
2008	5078219779.298661
2009	5354246306.127163
2010	5767626976.457088
2011	6239804852.109773
2012	6619667275.455927
2013	7239630797.356879
2014	7545046924.961738
2015	7573397799.378456
2016	7627332912.884234
2017	7620322936.541002
2018	7127572799.02538
2019	7284484333.108373
2020	7276321160.001535
2021	7260766426.361232
2022	7320381896.893585
2023	7459084872.4022665