Year	US Dollars adjusted for inflation)
1960	570.85704
1961	583.84296
1962	609.44638
1963	638.74066
1964	662.17027
1965	695.15398
1966	749.70772
1967	790.45063
1968	829.78215
1969	858.5753
1970	929.08163
1971	946.83963
1972	959.62018
1973	1028.80136
1974	1046.2383
1975	1070.34241
1976	1141.80115
1977	1225.13284
1978	1321.30022
1979	1362.6132
1980	1403.68093
1981	1457.31071
1982	1506.32796
1983	1561.33189
1984	1621.36319
1985	1666.28055
1986	1726.80161
1987	1857.25364
1988	2067.72635
1989	2283.08965
1990	2502.71272
1991	2684.84523
1992	2872.79787
1993	3081.75304
1994	3297.86779
1995	3530.29398
1996	3688.9342
1997	3545.38806
1998	3235.73224
1999	3345.15602
2000	3458.05393
2001	3544.20834
2002	3731.02711
2003	3969.41557
2004	4190.03228
2005	4337.26336
2006	4525.15928
2007	4744.33323
2008	4800.81054
2009	4743.69047
2010	5075.30218
2011	5093.5805
2012	5437.22793
2013	5558.84109
2014	5591.10558
2015	5739.76265
2016	5910.45457
2017	6125.66029