Year	US Dollars adjusted for inflation)
1960	15639870223.4408
1961	16478502946.2158
1962	17723330987.9679
1963	19141167476.8231
1964	20448699889.0251
1965	22121743302.8005
1966	24582238292.991
1967	26700239601.4404
1968	28868905220.74689
1969	30760009014.5344
1970	34269095175.674
1971	35946695468.7766
1972	37484677724.0231
1973	41321771650.08631
1974	43167306675.46201
1975	45312896743.1013
1976	49539145018.0144
1977	54415512544.95009
1978	60017995792.2658
1979	63242022391.7338
1980	66513874353.0164
1981	70442760955.12131
1982	74213103191.03831
1983	78357313131.89548
1984	82864762916.74931
1985	86715687620.41191
1986	91514384420.51001
1987	100225589275.963
1988	113543679908.05101
1989	127385229004.66
1990	141610545731.92599
1991	153729944877.99603
1992	166156532830.72501
1993	179866180005.36996
1994	194249907286.591
1995	210023508389.76398
1996	221894822450.504
1997	215784747525.62201
1998	199312314682.61401
1999	208425468395.57697
2000	217712232033.23495
2001	225210772012.18201
2002	239058711719.12405
2003	256245431314.35602
2004	272361445882.36899
2005	283767493631.79602
2006	297864826688.79401
2007	314054055752.49603
2008	319473585807.45697
2009	317266875218.09692
2010	341105009515.33301
2011	343970153353.698
2012	368883177547.461
2013	378796469984.95496
2014	382525395708.79004
2015	394078328227.44006
2016	407014670809.508
2017	422900351828.26605