Year	US Dollars adjusted for inflation)
1960	3464325830.84372
1961	3568028631.9746
1962	3563167715.27842
1963	3629602213.66199
1964	3770573317.80542
1965	3820804499.27369
1966	3930719912.03577
1967	3882773270.99705
1968	4127029744.27322
1969	3856538316.43641
1970	4186736882.22053
1971	4180856633.76623
1972	4447729447.19003
1973	4199402032.7987
1974	4375809485.63196
1975	4705555724.44868
1976	5125314997.15378
1977	4987807649.19409
1978	4790593163.28708
1979	5126015435.68117
1980	4956311122.10141
1981	5207572128.92062
1982	5616005376.52607
1983	5316874875.03699
1984	5516032479.19102
1985	5697149788.99266
1986	5874521415.8732
1987	6232536756.26076
1988	6195613276.33752
1989	6442065856.12262
1990	6398540801.57077
1991	6562076334.95335
1992	6643619794.57543
1993	6730038699.14731
1994	6728872473.78546
1995	7089773724.67834
1996	7232428842.10814
1997	7458372326.23663
1998	7898317288.30968
1999	8400637865.99023
2000	8668335875.41373
2001	9065425098.73579
2002	9124785833.02887
2003	9734616090.9252
2004	10306113227.5195
2005	10885585456.5604
2006	11153541790.0781
2007	11704357787.6242
2008	12135373619.3484
2009	12429435070.344
2010	12948906288.5576
2011	13176951814.23
2012	13758210914.7575
2013	14233621992.6055
2014	14813653949.0484
2015	15770157926.6534
2016	16833353304.076
2017	17975846535.2953