Year	constant 2015 US$
1970	4114143740.6412334
1971	4486153145.382234
1972	4794046014.840511
1973	5043165393.388337
1974	5421853603.965132
1975	5486638096.291524
1976	5497991989.752296
1977	5699691923.770597
1978	6203941682.726709
1979	6543892819.900437
1980	7660588991.167113
1981	8456033153.880454
1982	8976437145.462553
1983	8656616669.810137
1984	8845806119.915525
1985	9197158348.943003
1986	9470078868.228683
1987	9182584881.662315
1988	8220738635.89135
1989	8376806708.427699
1990	8998959651.827002
1991	9872040464.47692
1992	10678348519.885056
1993	10930601312.15462
1994	11196367761.742517
1995	11382907733.640438
1996	11890605749.36092
1997	12762315083.264233
1998	13759835595.415516
1999	14083442597.327797
2000	14788220717.499037
2001	15190788789.154621
2002	15519887199.116032
2003	16050269598.9551
2004	17431422410.189445
2005	18884341052.324535
2006	20620155065.63678
2007	23177389948.074444
2008	25197225202.631283
2009	25663138743.99838
2010	27036910769.768166
2011	29900008000.796604
2012	32039258083.706394
2013	33197374021.96511
2014	34214161515.220707
2015	35607700000
2016	37180382875.27103
2017	39128548150.89679
2018	40821407523.863594
2019	42566068131.7642
2020	38111573828.47251
2021	42528058773.558014
2022	46944023611.71617
2023	49946947209.21274