Year	constant 2015 US$
1960	8706973537.539047
1961	8990853461.34802
1962	9300815984.335234
1963	10121875495.040047
1964	10940341715.412771
1965	11311593522.71018
1966	11517726945.150822
1967	12311426223.5499
1968	13215167772.94065
1969	13560532450.626345
1970	14448366940.942196
1971	15321635444.91534
1972	15912646065.063059
1973	17007551988.176638
1974	18023986142.12426
1975	18349179690.59444
1976	20740386995.718655
1977	22493159209.546482
1978	23840399416.959103
1979	24094903427.801773
1980	24221303327.356747
1981	25063353452.49385
1982	23724221278.562607
1983	22460354739.64565
1984	22648710047.93208
1985	22109240945.27456
1986	22405002648.357132
1987	23938055610.6324
1988	24993331385.190483
1989	25779592498.229767
1990	25941581087.11669
1991	27338519266.73372
1992	29662826042.641636
1993	30930035789.27171
1994	32081052941.089542
1995	33571624010.707836
1996	33800938973.944546
1997	36126060913.28022
1998	39281457878.99405
1999	40684102138.24883
2000	41738617244.81921
2001	43398580435.77626
2002	45162756639.71034
2003	46274061012.52156
2004	47621027891.18149
2005	49073817007.10057
2006	52013945868.99805
2007	55138428562.03606
2008	55296072339.365746
2009	54197069249.11856
2010	56564297576.91902
2011	59694257458.43564
2012	61589720599.63099
2013	63503671613.31079
2014	65791316787.88093
2015	68549961324.99609
2016	70100454412.79396
2017	72405132269.875
2018	75433682781.6598
2019	79109598013.69348
2020	77613788948.424
2021	85642340812.13544
2022	88857710905.38261
2023	92660436511.55229