Year	US Dollars adjusted for inflation)
1960	1072.46634
1961	1093.58687
1962	1115.51261
1963	1138.30725
1964	1161.53393
1965	1183.7738
1966	1203.63678
1967	1225.29045
1968	1277.37249
1969	1306.5754
1970	1336.65355
1971	1360.50392
1972	1471.72742
1973	1524.78188
1974	1704.9967
1975	1740.36879
1976	1715.48494
1977	1802.36749
1978	1917.47095
1979	2027.46759
1980	2288.80069
1981	2264.75222
1982	2199.69714
1983	2093.64357
1984	2074.39643
1985	2038.381
1986	2073.20486
1987	2242.87624
1988	2385.63339
1989	2632.62745
1990	2849.03459
1991	3089.23044
1992	3404.20681
1993	3557.47726
1994	3491.40076
1995	3424.08611
1996	3363.89631
1997	3358.51052
1998	3352.85454
1999	3513.85528
2000	3838.89249
2001	3910.18726
2002	3997.12068
2003	4257.48739
2004	4343.17724
2005	4342.12889
2006	4424.43738
2007	4358.469
2008	4385.17593
2009	4307.22112
2010	4344.15018
2011	4333.36178
2012	4397.77064
2013	4332.88254
2014	4411.85598
2015	4482.49665
2016	4367.49988
2017	4315.22499