Year	constant 2015 US$
1960	18456573713.716763
1961	20524428044.57292
1962	22608913015.154335
1963	25027099758.41644
1964	27013547322.45002
1965	29444212128.910294
1966	29420760690.199947
1967	30301920258.613396
1968	35223543565.64484
1969	40001864574.55167
1970	42924935037.33646
1971	47625675138.43127
1972	53410553946.1143
1973	56394849263.40112
1974	60047070775.13751
1975	61994288800.87501
1976	62194222279.93149
1977	62838118696.32753
1978	66328830927.45432
1979	70446402684.48842
1980	71623168676.96884
1981	75447793598.04213
1982	77018993849.70526
1983	79606140097.49773
1984	80349035382.37367
1985	83592678070.45824
1986	87095332080.81877
1987	93313687316.27576
1988	96029130733.15506
1989	96581055286.53957
1990	103646151726.36214
1991	111653972780.72809
1992	120317501715.72453
1993	125270680183.91998
1994	134575592354.114
1995	143461517687.92096
1996	151966334119.46335
1997	157726545602.6759
1998	164217868444.74957
1999	169687132284.20755
2000	184401815445.30698
2001	185017847776.68213
2002	184806518674.15652
2003	187382560696.3683
2004	196347818275.37436
2005	204464987521.97614
2006	215879588868.4021
2007	228904065520.3467
2008	236346110629.9046
2009	238433331332.27588
2010	251948960764.976
2011	265960192873.3762
2012	272842322027.35757
2013	284889679087.51794
2014	296054867115.4756
2015	303414276832.04004
2016	317133700441.6623
2017	330696227434.5014
2018	344156628360.70526
2019	358460252733.5881
2020	351802608893.27246
2021	382099815616.82635
2022	408208262853.2228
2023	416360345096.69434