Year	US Dollars adjusted for inflation)
1960	1135.86589
1961	1181.81772
1962	1231.49711
1963	1254.92078
1964	1333.15877
1965	1437.27315
1966	1485.68516
1967	1509.32287
1968	1536.70963
1969	1622.69848
1970	1753.78633
1971	1817.42308
1972	1871.46598
1973	1942.72956
1974	1941.75452
1975	1873.90508
1976	1761.93492
1977	1728.52822
1978	1825.05518
1979	1807.41268
1980	1717.09262
1981	1665.01214
1982	1624.64668
1983	1630.90792
1984	1581.1133
1985	1600.73375
1986	1632.3537
1987	1634.83809
1988	1640.13074
1989	1576.50976
1990	1490.94647
1991	1592.68506
1992	1768.27575
1993	2038.17201
1994	2105.22258
1995	1984.05484
1996	2082.95166
1997	1950.18652
1998	1828.35007
1999	1814.50556
2000	1724.23168
2001	1678.77771
2002	1634.31999
2003	1628.46285
2004	1631.83773
2005	1693.2751
2006	1690.48167
2007	1833.41592
2008	1785.12512
2009	1862.63205
2010	2004.81811
2011	1982.09332
2012	2029.15191
2013	2061.90725
2014	2329.89087
2015	2402.53625
2016	2398.17117
2017	2401.57138