Year	US Dollars adjusted for inflation)
1960	15841904236.2822
1961	14122839628.7941
1962	17116980138.997
1963	18009457794.7427
1964	17569986761.7983
1965	17745220812.79
1966	18947545640.7187
1967	18760772357.935
1968	19573620053.7254
1969	21399611249.3778
1970	21347170094.9683
1971	22629071516.0446
1972	22663272079.546
1973	24507445053.7712
1974	25274671667.9861
1975	24015580787.6976
1976	22740593103.9214
1977	22913602081.2107
1978	21688803250.5044
1979	21782084247.4732
1980	22260182029.6673
1981	22783412967.3825
1982	22679138387.6735
1983	22999300620.7586
1984	24273708892.6902
1985	24387273670.5745
1986	25537672498.36599
1987	26220969304.7984
1988	26344307850.7228
1989	26010775573.7318
1990	24302307019.96289
1991	22255797230.3342
1992	19918936615.0185
1993	17236044975.68399
1994	16563839772.6473
1995	16679786457.2249
1996	16509123445.4507
1997	15581798288.4826
1998	15328725881.3293
1999	14674167698.5781
2000	13660046634.625
2001	13373162020.0174
2002	13767371433.9896
2003	14535290949.534
2004	15514733205.9984
2005	16466585539.5574
2006	17342769191.2512
2007	18428335972.5325
2008	19575664685.7398
2009	20134562442.8413
2010	21565722425.0028
2011	23048294866.7093
2012	24681704232.8556
2013	26775195682.7944
2014	29310883852.6502
2015	31338079628.78279
2016	32089998961.1136
2017	33277601928.2367