Year	US Dollars adjusted for inflation)
1960	158.83011
1961	156.21525
1962	159.18396
1963	176.61194
1964	162.59865
1965	175.95739
1966	163.55346
1967	150.22136
1968	164.29367
1969	165.61208
1970	169.68826
1971	172.4886
1972	172.50809
1973	166.81707
1974	171.61007
1975	174.56169
1976	180.87882
1977	187.23759
1978	194.8865
1979	200.36075
1980	211.36803
1981	219.73554
1982	226.87391
1983	231.66096
1984	237.94933
1985	239.77968
1986	232.65018
1987	219.19683
1988	190.91185
1989	194.7374
1990	197.20985
1991	193.24447
1992	209.26521
1993	219.28388
1994	232.9094
1995	246.06427
1996	258.59507
1997	269.64953
1998	281.7317
1999	308.59011
2000	346.77465
2001	381.70301
2002	422.9584
2003	476.61244
2004	536.2101
2005	603.83209
2006	677.70365
2007	753.95189
2008	826.0947
2009	907.36239
2010	987.73658
2011	1034.77236
2012	1101.20617
2013	1183.27924
2014	1266.12409
2015	1342.26306
2016	1408.14066
2017	1484.20075