Year	constant 2015 US$
1964	12319846045.471685
1965	13324555413.370872
1966	14512398481.264275
1967	14826883248.840485
1968	15887164222.255167
1969	17325079514.968204
1970	19880741873.163113
1971	20574123951.0722
1972	23341968803.0534
1973	24969332750.932877
1974	24436350534.398056
1975	24531706357.498486
1976	44886069868.577644
1977	27749807513.258614
1978	29234453474.24597
1979	30538491717.308163
1980	30794247401.782764
1981	30506285445.929874
1982	30210114048.35298
1983	31163040783.84004
1984	32770828370.685684
1985	34328096316.153522
1986	35823477700.93375
1987	37907412907.76429
1988	39652235021.84689
1989	40664522335.95273
1990	41613660098.33652
1991	41182348660.07426
1992	42412501927.621544
1993	44191424799.634125
1994	45993081510.26665
1995	42199687938.3179
1996	51402472110.78494
1997	54318718409.31322
1998	56453804753.03861
1999	59393416385.7041
2000	60379180888.08671
2001	61152131401.16567
2002	63036514024.55418
2003	65241064875.17396
2004	69861086079.16547
2005	71922918942.89333
2006	72480529484.59978
2007	73192856428.02545
2008	71913446510.13498
2009	70469216262.24973
2010	70922630043.61456
2011	71581911363.59369
2012	73180858013.19826
2013	73984751806.62097
2014	72834798469.76093
2015	70740800000
2016	69618472435.0596
2017	71019470130.7161
2018	72468137699.0539
2019	75871865920.7336
2020	72448871125.51187
2021	86746555626.15555
2022	91803633931.9984
2023	94477119291.5414