Year	constant 2015 US$
1960	4762965755.53123
1961	5133444756.084802
1962	5555226874.051184
1963	5868528354.434754
1964	6280519801.139151
1965	6693686128.394984
1966	7211808451.579314
1967	7496129545.027404
1968	7638681718.601929
1969	7724839625.707411
1970	8389822017.82154
1971	8867215148.556005
1972	9050888141.430874
1973	9639894924.551985
1974	10452129012.44639
1975	10778745805.746264
1976	11168806148.823809
1977	10980042006.892708
1978	10537112039.000435
1979	10973775977.285038
1980	11603120326.005535
1981	11681054069.250948
1982	11543984671.583136
1983	9449172648.368488
1984	9990400955.731106
1985	10440380206.932009
1986	12068764651.225616
1987	13614907456.918537
1988	12089129247.450548
1989	10195613425.382343
1990	9604256881.158354
1991	10197179932.784262
1992	9955546166.038433
1993	10434114177.324337
1994	11977123968.21342
1995	12654246792.692413
1996	12876299216.914268
1997	13458256716.72675
1998	13090127477.276054
1999	12908804245.504063
2000	13625481381.88148
2001	13743752690.726276
2002	14656243252.343426
2003	15227626827.19296
2004	16361386559.331007
2005	17438752025.00001
2006	18706448140.002033
2007	20680639093.269005
2008	22441785039.87515
2009	20991199185.69922
2010	23115383222.69983
2011	25041795700.20831
2012	25360971583.34907
2013	26691327994.427807
2014	26397607856.56821
2015	26170072656.439644
2016	26154015955.569984
2017	26299309517.097866
2018	27823912846.014412
2019	27495337918.462143
2020	24065469961.963005
2021	28511217968.60587
2022	28866815148.84122
2023	26947843581.49185