Year	constant 2015 US$
1960	10181067353.999004
1961	10782650495.432522
1962	12774295542.925997
1963	15393334109.203981
1964	16604825861.178066
1965	17800651456.00678
1966	18815588391.986366
1967	18975063294.850933
1968	19747382308.74308
1969	21330483345.924587
1970	23563237094.207176
1971	25545288257.106815
1972	26416421048.80535
1973	26624972069.125843
1974	25287476357.52964
1975	27752311533.629383
1976	30850514153.879547
1977	32117741974.724987
1978	34201889412.288143
1979	36063191303.09545
1980	37657539782.31167
1981	39599118779.32407
1982	43146719165.81096
1983	45953322529.64306
1984	49667503024.04774
1985	54352190991.997765
1986	59486970030.75785
1987	64734860112.85329
1988	68024396265.89392
1989	73414259813.26874
1990	74841363902.45915
1991	74709948670.0135
1992	75858527066.08278
1993	82079868804.57263
1994	81465639693.74905
1995	87318797654.90083
1996	91517171266.31352
1997	98489740334.2874
1998	109365074549.26755
1999	119034761464.09175
2000	121649640267.83879
2001	122999628108.28938
2002	125235471990.73216
2003	129458300970.77788
2004	136656583539.04918
2005	147204394202.45267
2006	158673744259.39645
2007	169285610635.21887
2008	186728255101.0272
2009	212178097141.9259
2010	220923394983.2179
2011	233071365892.28253
2012	235023603456.19647
2013	238369001217.406
2014	254357170615.0003
2015	271880494963.58566
2016	290095589752.95215
2017	321281723985.19226
2018	343052581116.4681
2019	356188731249.5102
2020	357471160552.4803
2021	358982752023.6471
2022	385882960433.9844
2023	393689631070.52484