Year	US Dollars adjusted for inflation)
1960	3806.80573
1961	3918.36704
1962	3986.72324
1963	4127.31888
1964	4140.7725
1965	4089.77708
1966	4451.64458
1967	4514.60059
1968	4579.30086
1969	4663.49827
1970	4656.62433
1971	5000.59573
1972	4861.11667
1973	4537.19593
1974	4568.01875
1975	3913.96506
1976	4000.22299
1977	4350.49659
1978	4615.07742
1979	4928.7008
1980	5242.33014
1981	5499.99572
1982	4819.76212
1983	4507.42799
1984	4618.7478
1985	4726.90567
1986	4899.4218
1987	5128.9592
1988	5413.32532
1989	5851.48345
1990	5947.76483
1991	6309.45765
1992	6904.33044
1993	7247.05354
1994	7498.85209
1995	8051.48659
1996	8479.87528
1997	8987.61952
1998	9254.79479
1999	9100.99917
2000	9469.11047
2001	9666.47605
2002	9852.83393
2003	10141.73198
2004	10754.3066
2005	11249.8679
2006	11833.95202
2007	12285.04838
2008	12588.69122
2009	12268.44115
2010	12860.17764
2011	13518.76508
2012	14109.14333
2013	14551.04442
2014	14681.33076
2015	14893.88065
2016	14958.56225
2017	15059.53014