Year	US Dollars adjusted for inflation)
1960	1080.32335
1961	1082.76521
1962	1052.05546
1963	1042.46641
1964	1053.14099
1965	1037.4513
1966	1037.34522
1967	995.7777
1968	1028.27698
1969	933.14394
1970	983.37803
1971	952.69378
1972	982.89887
1973	900.30066
1974	911.18126
1975	953.27319
1976	1011.97333
1977	961.12731
1978	901.28962
1979	940.87958
1980	886.21935
1981	905.61148
1982	948.6401
1983	871.54811
1984	877.04654
1985	878.54741
1986	878.60929
1987	904.06597
1988	871.6424
1989	879.0309
1990	846.85881
1991	842.40933
1992	827.37825
1993	813.57597
1994	790.49997
1995	810.57426
1996	805.92454
1997	810.99871
1998	838.60562
1999	870.8973
2000	877.00225
2001	894.5116
2002	877.64815
2003	912.25051
2004	940.68692
2005	967.49872
2006	965.1095
2007	985.74991
2008	994.38023
2009	990.32087
2010	1002.52994
2011	990.68047
2012	1003.99153
2013	1008.02404
2014	1018.39275
2015	1052.95882
2016	1092.25116
2017	1134.08224