Year	US Dollars adjusted for inflation)
1960	8607.65708
1961	9396.22121
1962	10138.39701
1963	10886.16411
1964	12031.29505
1965	12595.38937
1966	13808.69794
1967	15196.61018
1968	17097.27529
1969	18837.17726
1970	18699.74296
1971	19328.00904
1972	20662.70465
1973	22138.4314
1974	21453.70654
1975	21765.66916
1976	22464.08621
1977	23225.43571
1978	24229.62294
1979	25343.98368
1980	25854.57502
1981	26744.55612
1982	27443.60965
1983	28217.49821
1984	29301.36585
1985	30646.87862
1986	31473.99843
1987	32801.20619
1988	34877.65523
1989	36422.60701
1990	38074.46354
1991	39253.64184
1992	39488.39343
1993	39187.03454
1994	39441.58676
1995	40368.71228
1996	41514.89779
1997	41861.75344
1998	41277.06676
1999	41097.9596
2000	42169.73328
2001	42239.18493
2002	42190.80487
2003	42744.01128
2004	43671.67997
2005	44393.62638
2006	44995.49449
2007	45687.27381
2008	45165.78792
2009	42724.76037
2010	44507.67639
2011	44538.72619
2012	45276.87434
2013	46249.20959
2014	46484.15527
2015	47163.49421
2016	47660.89304
2017	48556.92724