Year	constant 2015 US$
1960	7203095110.535613
1961	7578242148.070007
1962	7975810159.645952
1963	7707448957.972636
1964	8442610416.394395
1965	8352574519.663895
1966	8568947494.853192
1967	8338140011.426339
1968	9194523034.85801
1969	9283931232.858751
1970	9787377405.65546
1971	9346152818.727743
1972	8345497035.968618
1973	8368269541.343651
1974	8907036176.11143
1975	8500561384.470559
1976	9213576906.448576
1977	8876521958.919445
1978	9571928232.0688
1979	9508293377.623827
1980	9363937982.420317
1981	9673311694.08868
1982	9772340983.377516
1983	10152459976.834526
1984	10650448164.192738
1985	10670729900.099174
1986	11025535022.418348
1987	11036012963.814959
1988	10987891049.21727
1989	10968439486.508024
1990	11978816350.910643
1991	12233863706.849367
1992	12518099315.876509
1993	12817166314.786345
1994	12911629906.134315
1995	12863534212.934853
1996	13245270046.532598
1997	13843767129.634714
1998	14388576006.620293
1999	14947074579.073689
2000	16051703163.421812
2001	16494397390.573965
2002	16474785364.191038
2003	17131116285.580708
2004	17983134683.140766
2005	18771237464.474194
2006	19813551305.28641
2007	21139572488.726875
2008	22089556945.1364
2009	22855200531.676743
2010	24261240382.746403
2011	25342410776.69257
2012	26106299820.04619
2013	26749790750.421112
2014	27919256841.36108
2015	28848516098.9111
2016	29652313057.434795
2017	30600003125.741497
2018	31684632446.278168
2019	32717734500.92694
2020	33836991162.591488
2021	34911170749.36254
2022	35977340641.72442
2023	37190294814.676155