Year	constant 2015 US$
1960	7183585883.535639
1961	7674200782.86697
1962	8018176276.833688
1963	8595302453.275974
1964	8589774557.891323
1965	9247661505.349813
1966	9596856238.047077
1967	9804315052.490501
1968	10465250130.486116
1969	10856829855.124063
1970	10867126538.85711
1971	11295439446.746254
1972	11910748937.423756
1973	12799547581.058867
1974	12306400185.35954
1975	12472532066.69667
1976	13755606630.300705
1977	14351122146.98771
1978	14864174118.463957
1979	15307530251.29519
1980	15905176899.705662
1981	16495321952.920986
1982	16563439863.77793
1983	15912499594.065247
1984	15835086321.138468
1985	15558793308.088234
1986	16127228201.094156
1987	16623609219.356737
1988	17114128764.08205
1989	17580394332.858643
1990	17614311392.766167
1991	17873223663.032658
1992	17936091938.798866
1993	18314056976.608315
1994	18767463049.559628
1995	18873461439.35443
1996	19562503824.49707
1997	20137892230.742348
1998	18733890830.49138
1999	20541681678.135056
2000	21236895098.627567
2001	22057474947.648487
2002	22853318024.344772
2003	23898799883.934784
2004	25091137652.82343
2005	25968552817.35409
2006	27158311205.85783
2007	28616716955.29297
2008	29586842058.280815
2009	29544030685.78916
2010	29935113963.2231
2011	30948141649.139713
2012	31901328559.99755
2013	32837028475.23751
2014	33452070606.044746
2015	33698317641.272503
2016	33373802394.645775
2017	34791903563.65133
2018	35180756514.56844
2019	35604667104.54418
2020	35535516124.61248
2021	35432121535.52071
2022	35602262159.280106
2023	36024850401.503494