Year	constant 2015 US$
1960	2847329353.4888463
1961	3462791864.7372494
1962	3906281861.688134
1963	4319908368.132264
1964	4613737654.037804
1965	5393620992.329143
1966	6113434091.095401
1967	6778669086.521728
1968	6162520058.250181
1969	6124418363.465701
1970	6543880264.606553
1971	6839425843.069953
1972	6820889883.445071
1973	7660500202.749919
1974	9740990041.387157
1975	9462607388.502354
1976	8270470577.813172
1977	8299647551.296783
1978	6277168401.115194
1979	6229798726.518273
1980	8956301083.933813
1981	10599822837.340034
1982	10627283518.265785
1983	8111198628.443815
1984	6829814604.745941
1985	5912284603.314273
1986	7263350104.86124
1987	8138316050.857994
1988	7303854609.226724
1989	6006680693.996543
1990	6726493792.762801
1991	7884648010.806366
1992	8581119530.785735
1993	8906871858.267462
1994	11279474690.252382
1995	14336191735.800085
1996	14350608593.286104
1997	16101570260.81433
1998	16334642790.171642
1999	13968218611.395018
2000	14498896270.285164
2001	14919387946.960732
2002	15296972309.689812
2003	15663229141.537022
2004	17293020554.480366
2005	19398911522.973923
2006	21862477860.525394
2007	26519122828.50968
2008	33143668843.335632
2009	27860577091.73264
2010	35266036220.38464
2011	40060671110.020836
2012	44065811423.04168
2013	45329002745.62624
2014	44880020612.490204
2015	45316302180.69808
2016	46027190558.16347
2017	49294668329.81631
2018	51026064262.18493
2019	51871853234.69807
2020	43805964729.78174
2021	55006146703.86101
2022	57188584320.4351
2023	56148854288.883835