Year	constant 2010 US$
1960	7090856270.20237
1961	7459161437.24807
1962	6906663516.96283
1963	8840526105.25137
1964	7643354297.46419
1965	7919802822.47079
1966	8840704863.16497
1967	8564410063.54542
1968	9945802652.44373
1969	11879704501.1477
1970	12616410258.3743
1971	13311571756.482
1972	16528069337.5615
1973	18884107945.7368
1974	19324822584.0526
1975	21561172766.7617
1976	21492041058.7906
1977	21415889331.7854
1978	24253868475.007
1979	26509435293.8928
1980	32504346372.5505
1981	39434355394.8899
1982	35809912464.3092
1983	40942210275.1113
1984	49930913639.5884
1985	53439412112.0639
1986	47785226560.892
1987	56976859952.6006
1988	64428837482.6495
1989	67705375899.4691
1990	64373015911.3433
1991	71217633981.3552
1992	83002243121.8736
1993	92697180763.9837
1994	96412744372.4421
1995	94452788994.9978
1996	94054906093.679
1997	104419087767.167
1998	109544190939.063
1999	115795099704.411
2000	130686985675.307
2001	142750083049.113
2002	151995751762.165
2003	168739511653.024
2004	193162496873.579
2005	211791454581.628
2006	222036713506.139
2007	235749926671.214
2008	236714735504.775
2009	214825566564.347
2010	240006821282.401
2011	251555820827.649
2012	253335934515.689
2013	257972729649.841
2014	253923382219.191
2015	271239849647.567
2016	273580990109.141
2017	287929027455.662
2018	299603242894.497