Year	US Dollars adjusted for inflation)
1960	1059.3347
1961	1082.11094
1962	1096.75372
1963	1136.33241
1964	1138.38406
1965	1161.463
1966	1176.57443
1967	1203.01303
1968	1226.25563
1969	1246.81209
1970	1256.99679
1971	1287.60663
1972	1319.27802
1973	1396.43832
1974	1405.64522
1975	1442.71681
1976	1526.6625
1977	1568.26713
1978	1604.67899
1979	1649.31068
1980	1687.28886
1981	1697.81465
1982	1711.72704
1983	1696.8254
1984	1530.35375
1985	1380.6819
1986	1389.97724
1987	1411.72737
1988	1467.82232
1989	1518.98102
1990	1525.81243
1991	1479.69881
1992	1448.94267
1993	1444.64773
1994	1472.98291
1995	1506.5843
1996	1558.71381
1997	1603.21687
1998	1559.20928
1999	1572.68777
2000	1607.20162
2001	1618.96976
2002	1643.20444
2003	1689.98021
2004	1768.10684
2005	1818.31543
2006	1880.19245
2007	1971.28171
2008	2020.15041
2009	2010.79932
2010	2129.49925
2011	2171.49218
2012	2278.63591
2013	2399.60719
2014	2505.81887
2015	2615.6591
2016	2752.10912
2017	2891.35889