Year	constant 2015 US$
1970	21822093624.05701
1971	23335455203.05877
1972	24403265474.837215
1973	25630422651.64821
1974	26551906582.61855
1975	28550129172.2641
1976	30301705073.8865
1977	31561103647.824703
1978	33114022940.994072
1979	34798139919.39647
1980	36316957734.83514
1981	37548207088.973816
1982	38474775240.260376
1983	39635217526.09276
1984	40237015604.00947
1985	41314746305.67321
1986	42228913919.60315
1987	44027859873.92784
1988	43593965071.81975
1989	44955544073.576485
1990	46971499431.64199
1991	49710902139.09264
1992	52724480727.498146
1993	54636271571.76807
1994	55423457683.16623
1995	55611697840.2397
1996	57179745788.984146
1997	58844393923.73666
1998	60930412317.867065
1999	62849767489.92452
2000	64172904825.87574
2001	66741552133.92575
2002	69155440735.76517
2003	69996197168.54393
2004	70846502015.08728
2005	72227797871.24104
2006	73820398883.9516
2007	75308215355.99872
2008	77237986979.43573
2009	80514084943.68085
2010	82280045468.63693
2011	83179208432.36536
2012	84447039371.70607
2013	85263118735.14516
2014	87556970135.3725
2015	89656505115.22162
2016	91746367675.93259
2017	93476986669.4223
2018	94033150769.86665
2019	95086080396.81715
2020	94593407047.63869
2021	98014219282.83554
2022	99101250387.51674
2023	102700010333.78108