Year	US Dollars adjusted for inflation)
1960	2185147448.45665
1961	2507824745.57133
1962	2694637917.34802
1963	2858806988.60155
1964	2989010027.3945
1965	3238094265.90065
1966	3384067703.2815
1967	3523327261.96328
1968	3611720527.3374
1969	3903652662.68187
1970	4242464034.62141
1971	4677687003.95844
1972	5207995008.24281
1973	5738295642.81856
1974	8004181904.94183
1975	9540193610.10573
1976	12938919826.677
1977	11310933137.9047
1978	8590743519.12926
1979	8631498459.95146
1980	8851855191.39773
1981	9302886360.69597
1982	9014727558.08877
1983	9520295176.12533
1984	10235164840.3715
1985	9996383630.52791
1986	9916052918.20074
1987	8215842298.79446
1988	9271196264.38034
1989	10063448724.9368
1990	10585966860.9368
1991	11233034454.022
1992	10885917328.3046
1993	11315536043.781
1994	11735654156.0417
1995	12319367727.7966
1996	12765950846.9177
1997	13498508007.9584
1998	13967963653.2285
1999	12720258146.9231
2000	12480739960.3275
2001	12747232891.2701
2002	12715488053.2993
2003	13001247032.4304
2004	13090896228.8564
2005	13441236307.6313
2006	13063995233.2217
2007	13848895187.383
2008	13390715517.1432
2009	13408167901.8691
2010	14358631634.4187
2011	15376947272.882
2012	16184600812.6091
2013	17097238917.9892
2014	17834813005.57339
2015	18526671343.6802
2016	18912467101.0138
2017	19121396781.1748