Year	US Dollars adjusted for inflation)
1960	2466.03824
1961	2078.22193
1962	1628.38872
1963	2133.31861
1964	2200.81388
1965	2276.147
1966	2107.80039
1967	2242.45042
1968	2414.0167
1969	2543.56327
1970	2691.80232
1971	2321.3504
1972	2877.74526
1973	2906.7005
1974	3039.42057
1975	3104.49357
1976	3270.68036
1977	3345.37802
1978	3548.90007
1979	3702.77745
1980	3620.70354
1981	3616.01631
1982	3729.25718
1983	3809.80376
1984	3900.85048
1985	3924.70927
1986	3825.90402
1987	3691.64756
1988	3554.62274
1989	3613.14659
1990	3550.03267
1991	3422.63862
1992	3403.90345
1993	3259.84368
1994	3164.89858
1995	3223.55756
1996	3297.86337
1997	3281.10214
1998	3397.4102
1999	3457.13705
2000	3541.07204
2001	3600.43725
2002	3754.51628
2003	3974.17503
2004	4091.14424
2005	4273.31275
2006	4282.32823
2007	4359.37575
2008	4390.49963
2009	4386.0389
2010	4463.39467
2011	4504.9201
2012	4564.43502
2013	4596.21963
2014	4675.88502
2015	4759.59524
2016	4827.72425
2017	4825.17859