Year	constant 2015 US$
1964	1327422710.5579348
1965	1469904980.5381606
1966	1573427254.820665
1967	1740955236.3208518
1968	1993082065.621792
1969	2263019178.670263
1970	2779517407.348574
1971	3283771065.950455
1972	3206964217.2892423
1973	3540907037.5553956
1974	3461317332.058633
1975	3820862435.211848
1976	3784128724.9825764
1977	4021784698.7386456
1978	4152022398.6424417
1979	4416393798.019813
1980	4592826921.393761
1981	5035301158.246408
1982	4813229182.76942
1983	5018604017.233107
1984	5386497690.892972
1985	5700403941.943155
1986	5992047338.308928
1987	6357714726.500362
1988	6816886104.366312
1989	7407408324.870286
1990	7647847155.461916
1991	7606104302.928644
1992	7617235730.270855
1993	7697938578.501838
1994	7720201433.186249
1995	8258405945.181861
1996	8672495042.311888
1997	9122761278.304075
1998	9291958973.905592
1999	9697142929.16185
2000	9266356691.018513
2001	9511248092.547022
2002	10035538320.364855
2003	10284882292.830282
2004	10343322286.376884
2005	10766830797.323807
2006	10721824210.29382
2007	10632205088.761703
2008	10133494880.976295
2009	10388404567.112728
2010	10039434319.934633
2011	9822371486.761644
2012	9945930330.260109
2013	9733320068.02401
2014	10449070846.127789
2015	9100300000
2016	8659361422.124115
2017	9007219596.551231
2018	8807037062.211098
2019	9400921858.574377
2020	9301178648.468489
2021	9577535957.42588
2022	9537956896.98506
2023	9565900906.994785