Year	constant 2015 US$
1960	5492745889.8149185
1961	6038315904.906196
1962	6112405708.352541
1963	6998115047.446165
1964	8230699197.193486
1965	7974752907.883088
1966	8898018736.259848
1967	9307163143.615604
1968	10475049116.162785
1969	11474286967.67769
1970	12664747894.41666
1971	13862407213.56633
1972	14449705424.807068
1973	15307901973.380775
1974	15970333193.068853
1975	17288346643.97997
1976	19521378206.89739
1977	20949261442.04948
1978	23234711409.583782
1979	23791045073.333443
1980	21184094378.321995
1981	21925643370.811653
1982	21969674962.351643
1983	21112804814.63004
1984	20542492760.351303
1985	21467156206.371277
1986	22166845697.292007
1987	22089489409.933838
1988	22340532915.1657
1989	22999132929.876503
1990	22747083497.32282
1991	22756392780.306595
1992	22700739607.15169
1993	22657044066.134167
1994	22840839521.074574
1995	24468419439.156643
1996	26359663691.904835
1997	28903065478.58599
1998	30135465005.63324
1999	30487103687.18044
2000	30406072178.226772
2001	29751121585.5543
2002	28938759334.224148
2003	27571152176.356308
2004	28449303912.454056
2005	28732677632.166897
2006	29541668752.636906
2007	29867049486.223133
2008	31295490700.86229
2009	32423167866.68183
2010	34643522418.93564
2011	32783010325.347122
2012	35281210700.94253
2013	39077544167.60543
2014	42739891584.486206
2015	45815005169.26511
2016	49101205368.91
2017	52739979047.02827
2018	55294253263.75376
2019	59010785541.05673
2020	59423700880.59254
2021	63620992438.48184
2022	67576850897.49359
2023	71993628609.49347