Year	US Dollars adjusted for inflation)
1960	1774.20574
1961	1774.50064
1962	1775.60118
1963	1825.16454
1964	1853.66169
1965	1751.37948
1966	1705.63559
1967	1887.44739
1968	1992.03716
1969	2000.58633
1970	2207.62638
1971	2310.56226
1972	2432.21187
1973	2659.33517
1974	2674.06744
1975	2635.9955
1976	2657.76284
1977	2764.15283
1978	2764.43393
1979	3041.52014
1980	2928.1285
1981	3038.3866
1982	2783.01833
1983	2605.76014
1984	2764.07048
1985	2594.70524
1986	2768.99594
1987	2574.44362
1988	2594.76348
1989	2781.21121
1990	2926.35162
1991	2820.84003
1992	2956.49941
1993	2977.50254
1994	3085.86438
1995	3122.91341
1996	3235.3573
1997	3130.72019
1998	3141.87758
1999	3392.17276
2000	3315.06747
2001	3368.93086
2002	3470.45827
2003	3501.14097
2004	3678.92578
2005	3689.06738
2006	3732.00348
2007	3667.45254
2008	3667.86084
2009	3580.39702
2010	3651.96678
2011	3719.88948
2012	3744.27711
2013	3894.26254
2014	4084.19979
2015	4211.05888
2016	4195.9681
2017	4322.98624