Year	US Dollars adjusted for inflation)
1960	1679.52516
1961	1706.20435
1962	1676.65541
1963	1432.30079
1964	1556.82959
1965	1683.91449
1966	1738.29735
1967	1782.83023
1968	1774.12977
1969	1872.03006
1970	1926.25266
1971	1961.8624
1972	1875.06225
1973	1877.67794
1974	2000.57495
1975	2147.02283
1976	2156.14198
1977	2076.33186
1978	2018.44176
1979	1965.74502
1980	1989.83425
1981	2015.52612
1982	1750.76396
1983	1636.65946
1984	1561.833
1985	1609.24269
1986	1607.21644
1987	1636.5567
1988	1590.3336
1989	1521.97133
1990	1480.41005
1991	1566.94092
1992	1680.97115
1993	1806.12756
1994	1947.51303
1995	2036.70192
1996	2195.62072
1997	2336.48415
1998	2304.31439
1999	2381.15031
2000	2354.53153
2001	2410.83044
2002	2437.39628
2003	2412.98087
2004	2493.14242
2005	2446.65189
2006	2576.77533
2007	2764.05026
2008	2824.55872
2009	2927.32731
2010	3044.94913
2011	3192.29554
2012	3342.92066
2013	3486.98076
2014	3595.92501
2015	3684.92359
2016	3783.54333
2017	3871.39069