Year	US Dollars adjusted for inflation)
1960	12449.55237
1961	12369.00197
1962	12922.15898
1963	12926.62649
1964	13840.91281
1965	13905.7787
1966	13629.62046
1967	13546.03608
1968	14067.02321
1969	13720.63385
1970	14329.48052
1971	14115.06623
1972	13890.47486
1973	14465.38677
1974	14359.01171
1975	14369.09072
1976	15053.44029
1977	15557.33202
1978	15486.02512
1979	15180.30426
1980	14119.38146
1981	13695.17436
1982	13060.14359
1983	12242.12633
1984	12098.0226
1985	11809.66852
1986	12256.15994
1987	12372.04146
1988	12763.62866
1989	11383.40813
1990	11830.683
1991	12681.62716
1992	13148.20022
1993	12896.47719
1994	12325.15263
1995	12545.25073
1996	12265.36138
1997	12787.04467
1998	12574.7437
1999	11597.99475
2000	11799.88332
2001	11975.38175
2002	10717.1845
2003	9710.3066
2004	11285.87053
2005	12237.93501
2006	13221.4769
2007	14143.71811
2008	14652.24075
2009	13961.94516
2010	13545.26345
2011	13902.51142
2012	14473.53142
2013	14462.4197
2014	13709.04305