Year	constant 2010 US$
1970	22764362610.741
1971	24718718938.4897
1972	25910737684.2322
1973	26798475124.5444
1974	27062258196.5649
1975	29637220774.0248
1976	31240663993.6181
1977	33951076765.648
1978	36180471866.4502
1979	36588583445.567
1980	34888055293.4138
1981	41641552103.1242
1982	45309253592.2234
1983	47755633033.0875
1984	51735915053.3998
1985	53126075291.9581
1986	51747674545.5696
1987	50902540154.072
1988	53021253553.2413
1989	54615173741.5494
1990	52148851764.0518
1991	45618294680.9115
1992	36815465968.7195
1993	32832711365.8986
1994	32631312197.752
1995	32983424781.5876
1996	35239986470.5898
1997	36296388663.2531
1998	36267663753.5494
1999	37947208044.3968
2000	39185958612.2022
2001	40498954182.9224
2002	41037658660.413
2003	43110745152.3568
2004	45040500471.3905
2005	47800835329.0803
2006	55527880103.0723
2007	57844165211.041
2008	59145513663.655
2009	58218077020.225
2010	61209000000
2011	62049856965.8052
2012	63625101399.6875
2013	66015945453.4184
2014	67273147553.4329
2015	71696697352.7681
2016	74166476776.4129
2017	75306078803.4971