Year	US Dollars adjusted for inflation)
1960	2213.22287
1961	2260.89862
1962	2313.93003
1963	2310.70247
1964	2390.56277
1965	2390.25442
1966	2443.78718
1967	2472.24745
1968	2556.42709
1969	2648.89209
1970	2759.92701
1971	2852.95085
1972	3000.89271
1973	3131.38782
1974	3238.23322
1975	3237.61266
1976	3317.66718
1977	3377.6932
1978	3581.03008
1979	3688.70154
1980	3753.43527
1981	3752.06991
1982	3702.68842
1983	3677.73959
1984	3718.09646
1985	3751.14975
1986	3887.65431
1987	4013.52856
1988	4093.99254
1989	4152.19281
1990	4319.93045
1991	4336.66268
1992	4472.68628
1993	4497.98234
1994	4679.24178
1995	4841.36713
1996	4862.06805
1997	4951.24642
1998	4904.74819
1999	4629.49803
2000	4764.16775
2001	4774.97561
2002	4825.832
2003	4945.95797
2004	5139.97663
2005	5312.08235
2006	5596.73474
2007	5910.29238
2008	6048.09453
2009	6078.31546
2010	6250.65504
2011	6592.40232
2012	6789.5255
2013	7051.04027
2014	7291.69187
2015	7446.1824
2016	7531.98258
2017	7600.75914