Year	US Dollars adjusted for inflation)
1965	7579875946.94847
1966	8122681304.00025
1967	8564299209.17345
1968	8841499229.434
1969	9149662507.43272
1970	9422074960.12815
1971	9785602875.31887
1972	10384240427.607
1973	10889088293.2948
1974	11470130164.4748
1975	11805463077.4129
1976	12401551623.2631
1977	13242384478.7977
1978	13947245595.786
1979	13364213708.7355
1980	11791069660.9503
1981	10558792438.2172
1982	9892976788.73966
1983	10044835341.6255
1984	10179130344.7292
1985	10241894401.0176
1986	10261292035.2356
1987	10519218693.9065
1988	10716712471.2378
1989	10819827802.6727
1990	11342594316.5462
1991	11512093366.9963
1992	12320017406.3797
1993	13036948146.8485
1994	13648352902.2721
1995	14294596894.7716
1996	14411481023.3879
1997	14863272247.2752
1998	15257769344.5254
1999	15587415995.5088
2000	15762939192.2857
2001	15901230435.7578
2002	16152606987.4286
2003	16404948034.2828
2004	16551081023.1557
2005	16999196207.0351
2006	17737453513.314
2007	18067472874.2886
2008	18451808686.66949
2009	18067384770.9256
2010	18447922400
2011	19151123032.28749
2012	19690049938.4193
2013	20157726890.3731
2014	20556700057.1359
2015	21045462109.7945
2016	21588556541.6367
2017	22089971802.6927