Year	constant 2015 US$
1960	21251844640.898758
1961	21605368671.937298
1962	22312416735.0059
1963	21484160432.35581
1964	23595203935.83872
1965	22756846946.474205
1966	23847721100.724598
1967	23443693636.11397
1968	25776952244.339508
1969	26271885888.38838
1970	27342558670.201458
1971	28382929391.871292
1972	28988970588.787235
1973	30605080447.22975
1974	31745712596.26341
1975	31747971273.542786
1976	33244345133.24331
1977	33668976508.367554
1978	35402511507.19061
1979	36766752731.670555
1980	38678723255.39477
1981	40582788408.14541
1982	41444473883.92622
1983	43429851426.66657
1984	45258263158.223755
1985	47183241627.43294
1986	48403405145.3253
1987	49440947515.91216
1988	51861716730.7352
1989	53583049395.65038
1990	54656529261.28762
1991	55405104835.44458
1992	59224747153.057915
1993	60065244482.95861
1994	60399170056.30016
1995	63041643932.90002
1996	65020545148.648735
1997	65672606647.1263
1998	64798165793.52187
1999	66199675261.03109
2000	67446089644.894356
2001	69642123859.95403
2002	72044075163.85063
2003	74773192019.43425
2004	76880980497.02043
2005	78970665689.78148
2006	81621179449.86668
2007	84453783639.55115
2008	88531626323.76215
2009	92035545108.93059
2010	94801832797.9654
2011	98543617059.28381
2012	103063333434.92462
2013	107396414716.78418
2014	111948603595.85873
2015	116151993169.34773
2016	120069485898.8645
2017	124771325921.24461
2018	129617641316.91734
2019	134292303589.09534
2020	136671948132.33047
2021	139229294112.677
2022	142368696083.57983
2023	144226192686.86835