Year	US Dollars adjusted for inflation)
1960	631.12839
1961	641.1322
1962	666.79187
1963	707.92529
1964	745.45802
1965	763.34967
1966	751.41952
1967	736.68413
1968	737.61438
1969	768.53285
1970	792.35195
1971	800.94223
1972	799.13764
1973	787.28981
1974	789.29927
1975	840.86116
1976	942.18569
1977	1038.84114
1978	1073.29316
1979	1111.04456
1980	1192.58146
1981	1206.7987
1982	1293.09573
1983	1353.34791
1984	1398.34516
1985	1450.99547
1986	1448.91489
1987	1444.59226
1988	1479.86357
1989	1512.97214
1990	1560.08335
1991	1540.94382
1992	1574.84393
1993	1587.73138
1994	1618.58478
1995	1661.33176
1996	1711.46506
1997	1772.21045
1998	1810.16933
1999	1885.74314
2000	1950.60698
2001	1982.11163
2002	1990.99216
2003	2015.898
2004	2059.37751
2005	2112.48797
2006	2217.39483
2007	2333.46731
2008	2456.73143
2009	2524.43244
2010	2602.47955
2011	2593.5969
2012	2593.22647
2013	2591.05945
2014	2608.3752
2015	2665.35161
2016	2725.67573
2017	2785.37002