Year	US Dollars adjusted for inflation)
1960	27831927084.8812
1961	29395129345.59629
1962	30798194686.4952
1963	32972697348.74509
1964	34109260339.1918
1965	35905389339.3335
1966	37494559779.48381
1967	39490826454.4564
1968	41443812926.0546
1969	43373585464.4691
1970	45006429570.2438
1971	47449662723.9221
1972	50034146731.94221
1973	54497516252.5246
1974	56436600596.6629
1975	59577169661.0729
1976	64823910895.6382
1977	68455382411.3781
1978	71995965495.13081
1979	76056304499.12958
1980	79972376151.54579
1981	82710045854.62241
1982	85703593377.2086
1983	87310207052.5587
1984	80915884624.3152
1985	75003677448.67598
1986	77566390203.25941
1987	80910769692.0802
1988	86374305405.76758
1989	91734099781.00546
1990	94520033471.4427
1991	93973391365.52481
1992	94290648382.35619
1993	96286128143.33081
1994	100510800776.104
1995	105213391791.494
1996	111364033551.44301
1997	117138662135.73
1998	116463102213.44199
1999	120052397730.23201
2000	125348175702.67596
2001	128975735687.80304
2002	133678066313.75996
2003	140322359076.564
2004	149720622534.37299
2005	156873776536.20401
2006	165098606448.58203
2007	176022623673.80801
2008	183332415224.453
2009	185437680417.07401
2010	199590775189.30496
2011	206895301780.21402
2012	220723809025.49893
2013	236315792451.07803
2014	250838103975.39102
2015	266055320221.55698
2016	284348525311.117
2017	303355852254.47687