Year	constant 2015 US$
1960	13139675574.123035
1961	13687088201.408562
1962	13936717812.98136
1963	14694026107.841991
1964	15060937323.780958
1965	15374525291.238857
1966	16931682311.671831
1967	17709669982.436066
1968	18294748616.09233
1969	19439647503.34335
1970	19904638045.188744
1971	21892221509.454575
1972	22152929356.422634
1973	21512016408.301853
1974	20786022596.200787
1975	19501685632.14953
1976	20150722621.142952
1977	22263416309.003613
1978	24443170261.290123
1979	26656602051.954056
1980	29161317628.18953
1981	30739892572.334827
1982	27702092223.845642
1983	25398262015.773155
1984	25777876277.656204
1985	27007560607.426292
1986	29086046520.28114
1987	30965318839.37364
1988	32710862020.313652
1989	36083467757.94305
1990	37389471697.804016
1991	40641077346.63638
1992	45546669224.50165
1993	48201656177.50294
1994	50683607077.78397
1995	55797556890.40492
1996	52034043644.98745
1997	56299435232.119995
1998	59435604229.14662
1999	60549073773.85397
2000	63841612115.411896
2001	66602966536.85501
2002	69863500605.14783
2003	74222767637.8306
2004	79798966438.31007
2005	85673657057.1338
2006	91990655002.89026
2007	99738079601.60753
2008	106623679077.52512
2009	106146141558.8885
2010	113686243790.77815
2011	122518873081.06918
2012	130294862997.5195
2013	134456477741.71616
2014	137887817450.82755
2015	141456955448.15506
2016	145040615510.81613
2017	147401786281.50534
2018	152615296033.26474
2019	155080418073.9529
2020	143153858937.46097
2021	165258661084.31833
2022	174064884614.4812
2023	175628898434.941