Year	constant 2010 US$
1960	27349937931.253
1961	28563397891.1588
1962	30086826405.3762
1963	31679830924.8661
1964	31363408195.8975
1965	31351428576.348
1966	34504503818.7537
1967	35551372159.5513
1968	37197521985.7293
1969	39212112570.0507
1970	39642527350.8047
1971	43936470403.8931
1972	45661729948.7014
1973	43136348959.0371
1974	38368247787.1519
1975	33484548022.4044
1976	32965587903.6958
1977	37565334264.8422
1978	40725790575.3477
1979	43992452121.4023
1980	46835663064.5651
1981	52324120747.3468
1982	43606833901.1522
1983	40939132528.9583
1984	41825957167.7011
1985	42125807042.2309
1986	44067124207.532
1987	47663026552.9291
1988	51106827470.2055
1989	57106799504.7896
1990	58566329695.5407
1991	62604414081.7623
1992	71470272683.1842
1993	78208512994.5095
1994	83048272763.5639
1995	94367913081.626
1996	102123492076.378
1997	109720712624.359
1998	114777291496.843
1999	109627318019.712
2000	116755536896.547
2001	120374567399.993
2002	122652283963.46
2003	126515294727.755
2004	136555381471.83
2005	151985612529.488
2006	165494463038.571
2007	176129616759.595
2008	191068945200.255
2009	178381168875.542
2010	204493215628.56
2011	224316830651.72
2012	240069196792.599
2013	247467331391.201
2014	245958003466.113
2015	252174272565.71
2016	256525323911.238
2017	264010788809.416
2018	276633079020.948