Year	constant 2015 US$
1960	304383039.064028
1961	320133148.3020876
1962	387192891.7874901
1963	487019357.3886776
1964	578207618.7476661
1965	639421960.8543905
1966	629712099.6943914
1967	695066934.4421606
1968	692306606.0172949
1969	703347919.7167552
1970	744346915.4304155
1971	772128809.1853507
1972	1012342330.9584506
1973	1003249484.3877125
1974	1017424582.6877301
1975	1092505515.8860183
1976	1136053756.0721085
1977	1104050183.5682526
1978	1203730514.1093066
1979	1377501307.03873
1980	818242531.0369645
1981	939956777.3301978
1982	864307541.2868103
1983	925473171.7692703
1984	732834722.1793432
1985	647053457.0860766
1986	532986944.2625974
1987	521263667.0740802
1988	503409213.3417954
1989	631813216.3617765
1990	732641562.2143259
1991	615720710.5191102
1992	654906862.816812
1993	697755009.8218931
1994	800111788.6738638
1995	976716565.81457
1996	1135214109.920981
1997	1298262650.6998408
1998	1374626751.110858
1999	1543001756.7451162
2000	1736102417.6017017
2001	1863703102.0270045
2002	1798256853.4776952
2003	1963276860.5308514
2004	2299104474.45948
2005	2475433454.967932
2006	2784721593.65427
2007	3052574083.783192
2008	3300341384.389296
2009	3301690389.655754
2010	3840468104.1316414
2011	4157634231.223303
2012	4673029187.747252
2013	4851322717.1307745
2014	5164142049.47496
2015	5113329517.771712
2016	5348281268.346467
2017	5890056772.303372
2018	5794802011.544038
2019	6150414788.729751
2020	5594849453.160165
2021	6606303624.055502
2022	7172436167.545674
2023	7263119299.346456