Year	constant 2015 US$
1970	24874314566.270775
1971	25516423652.502068
1972	25325437331.160786
1973	35612352557.78059
1974	36659484155.91103
1975	40380423480.98286
1976	37171277646.75619
1977	32950841987.907932
1978	35507748381.28729
1979	33113370695.939323
1980	35650373997.68453
1981	37960104626.731316
1982	35494339007.761284
1983	33864508897.56017
1984	35841668281.80614
1985	37147782170.57591
1986	33534649886.368546
1987	39626130783.41414
1988	38617744865.14305
1989	35076700055.7438
1990	37743950002.144035
1991	39471558423.738304
1992	40106285665.280266
1993	41788861541.10035
1994	41650532996.01223
1995	41182617126.19533
1996	42665697954.63322
1997	43713832168.43194
1998	44671523348.05545
1999	45447811843.403
2000	46218356588.48254
2001	47758652630.67627
2002	49799700012.864
2003	48851458942.58399
2004	48360169546.76049
2005	49361399253.891396
2006	50387509111.95923
2007	52174003258.865456
2008	53103978817.37495
2009	55289165130.140274
2010	56650174092.02013
2011	58313859525.74938
2012	60264679730.71487
2013	62468360276.14603
2014	64457409030.4876
2015	66513613224.13281
2016	69367092405.98607
2017	71831622057.37323
2018	74631374469.36243
2019	76763757128.76811
2020	78842826722.69632
2021	82855082886.66872
2022	82972438831.95409
2023	89539250889.75607