Year	US Dollars adjusted for inflation)
1960	1326.90528
1961	1253.49312
1962	1419.27185
1963	1462.81596
1964	1512.18182
1965	1282.1533
1966	1410.26341
1967	1413.48162
1968	1375.21382
1969	1481.07512
1970	1701.61899
1971	1834.46564
1972	1970.33576
1973	2165.50928
1974	2236.01316
1975	2292.54895
1976	2386.19454
1977	2444.36597
1978	2437.39864
1979	2488.40809
1980	2625.03593
1981	2675.52056
1982	2660.43936
1983	2722.63365
1984	2697.4076
1985	2584.29673
1986	2619.7279
1987	2825.89029
1988	2828.8175
1989	2894.75371
1990	2683.25634
1991	2656.09589
1992	2897.60003
1993	3052.58167
1994	3074.76346
1995	3192.19326
1996	3325.4235
1997	3561.30159
1998	3739.54385
1999	3899.28833
2000	4017.43117
2001	4052.58149
2002	4169.94555
2003	4051.68314
2004	4094.07626
2005	4414.81209
2006	4751.04136
2007	5031.9537
2008	5122.22509
2009	5101.21675
2010	5453.92686
2011	5552.39563
2012	5631.46807
2013	5833.43517
2014	6203.72597
2015	6562.76709
2016	6917.60494
2017	7153.07872