Year	constant 2015 US$
1960	32161658176.93923
1961	33341557689.80082
1962	34630529737.267975
1963	36044787804.2145
1964	37165729190.26227
1965	40550662645.960754
1966	44622458279.040245
1967	47006577532.07413
1968	51311257766.06822
1969	52953978574.4183
1970	56959446314.832245
1971	59919881257.47122
1972	62488244656.798294
1973	64478818413.349915
1974	66105325736.8262
1975	71980503073.82344
1976	77903583888.85692
1977	78401780060.4337
1978	80738732812.01653
1979	83410272933.26778
1980	85293248108.38417
1981	89167534016.63737
1982	90508094425.06662
1983	92809672300.56116
1984	97135724855.52527
1985	105717080213.27689
1986	110309181315.48834
1987	114046389578.89941
1988	118337067257.7752
1989	121819281622.71649
1990	125047239065.77318
1991	129049758899.84645
1992	132339622376.05766
1993	135704657463.95648
1994	137180084587.47237
1995	143092110753.72824
1996	149137529681.9004
1997	152279997841.07706
1998	158441859069.7065
1999	166173480424.75397
2000	171528352292.61926
2001	174750413922.99457
2002	180565159180.00766
2003	185569967169.9159
2004	193913279090.6567
2005	199834148975.9347
2006	206108767622.09558
2007	212454872997.01822
2008	219011753675.30026
2009	228083935438.77695
2010	231841779046.57285
2011	239076678183.21384
2012	248168758314.49017
2013	249587438240.94772
2014	253706400375.47827
2015	259298578703.76917
2016	271746113227.33707
2017	285068438957.50507
2018	295164281197.7867
2019	309990776138.2923
2020	332862107482.54376
2021	354681036263.1685
2022	378626879468.60187
2023	385014255532.2942