Year	constant 2015 US$
1960	3625840698.3041954
1961	4134802526.559147
1962	4248197962.0278378
1963	4486292348.030743
1964	4828618875.4230795
1965	4862122261.068016
1966	5059369885.261484
1967	5162708411.42547
1968	5431950966.245681
1969	5580280415.305603
1970	5777467194.991738
1971	5837572256.161762
1972	6175004178.38577
1973	6277288229.9238825
1974	6516302508.195917
1975	6612611202.752005
1976	7036158563.614162
1977	7677982199.130292
1978	8447045788.738508
1979	8751086010.39258
1980	9660394742.682806
1981	10102571157.623001
1982	10486399969.295147
1983	9406266326.28082
1984	8865320775.7506
1985	8500121018.156491
1986	8221388190.694445
1987	7846346668.676311
1988	7538791531.21829
1989	7476226028.870191
1990	7589054827.96429
1991	7825257167.366377
1992	8615058770.105803
1993	8557414139.735874
1994	8862672557.288189
1995	9200332683.926765
1996	9856728345.948952
1997	10598235690.321548
1998	11459296131.48648
1999	12378883749.266993
2000	13233195030.122105
2001	13784823938.518288
2002	14878885395.403698
2003	17027543678.869793
2004	18381242172.346836
2005	19522522080.315983
2006	22101068237.89205
2007	23151799368.06646
2008	23937047531.47444
2009	22885797214.055943
2010	23646343682.216583
2011	23576739627.010338
2012	25332457199.50562
2013	26227145724.22347
2014	27237844318.00162
2015	27026080986.578022
2016	24991790730.805378
2017	23791977736.53797
2018	23648639435.384693
2019	23734075444.00327
2020	21579525293.38995
2021	21355653641.954254
2022	21672194580.640583
2023	22128014027.032578