Year	constant 2015 US$
1960	11180686036.01084
1961	10790655285.031406
1962	10660702143.580372
1963	10400709399.994123
1964	9100578261.807762
1965	7800447044.520428
1966	10270558954.161018
1967	11050611372.230341
1968	13650676105.258606
1969	15210782136.762325
1970	41638640743.79985
1971	49837379477.72804
1972	59867569891.21517
1973	72087383191.90018
1974	92446362020.37886
1975	88356546329.18867
1976	87328998938.24109
1977	80585012413.67152
1978	84133145004.80072
1979	91197805957.5976
1980	91823913085.77548
1981	78047645072.40154
1982	67656071448.725525
1983	73464805176.07059
1984	70514167893.56711
1985	64866618339.46544
1986	61786823587.77166
1987	61990282486.55933
1988	58926294903.09125
1989	54445942202.18079
1990	66479941200.09155
1991	76394552470.59366
1992	80558749433.24709
1993	91466032938.79294
1994	97040030419.94322
1995	104576712093.9292
1996	110427062990.63498
1997	126543977783.71927
1998	126472276401.04393
1999	107382367020.62904
2000	118978145022.02646
2001	122941786331.29288
2002	106581592065.54723
2003	106066273056.84601
2004	117059029590.69398
2005	125793208860.64418
2006	148137333940.9139
2007	177109439208.69876
2008	207263579159.4792
2009	191507469356.688
2010	255928714179.1043
2011	279968772563.08044
2012	283134804283.8185
2013	302018987738.82086
2014	295157431666.24585
2015	253272712377.634
2016	227076885925.92972
2017	242329505689.96216
2018	261092543623.77914
2019	264571774325.9411
2020	239499262308.27594
2021	272435328386.88623
2022	275027533537.5522
2023	-445226052465.8709