Year	constant 2010 US$
1964	11747142092.7975
1965	12705146248.2971
1966	13837770897.2567
1967	14137636434.3018
1968	15148628877.472
1969	16519700820.9493
1970	18956559914.1654
1971	19617709230.7829
1972	22256887240.5595
1973	23808601073.8231
1974	23300395223.8912
1975	23391318308.417
1976	42799482947.0479
1977	26459821876.2521
1978	27875452152.5434
1979	29118870493.9052
1980	29362737045.1166
1981	29088161372.6415
1982	28805757884.9424
1983	29714386590.5671
1984	31247434095.2194
1985	32732310429.2621
1986	34158177079.308
1987	36145237866.9563
1988	37808949671.8874
1989	38774179502.9784
1990	39679195370.8073
1991	39267934001.7274
1992	40440902006.0725
1993	42137129351.1651
1994	43855033723.032
1995	40237980949.8793
1996	49012961816.0611
1997	51793642639.5035
1998	53829476737.3942
1999	56632436727.2436
2000	57572376693.7645
2001	58309395604.0923
2002	60106180267.8325
2003	62208249725.3114
2004	66613503277.5646
2005	68579489178.0712
2006	69111178473.6753
2007	69790391979.2715
2008	68570457083.5819
2009	67193363743.7783
2010	67625700000
2011	68254333776.456
2012	69778951326.2517
2013	70545475078.5779
2014	69448978807.5755
2015	66741156879.6802
2016	64745666137.1751
2017	64785407352.9281
2018	65113573452.7064