Year	US Dollars adjusted for inflation)
1960	2139.54728
1961	2303.95141
1962	2420.6097
1963	2549.99716
1964	2584.86872
1965	2739.33122
1966	2861.7268
1967	3017.34778
1968	3135.95217
1969	3304.34443
1970	3434.6903
1971	3659.43806
1972	3720.69816
1973	3812.58091
1974	3800.50889
1975	3764.55134
1976	3728.40789
1977	3673.96331
1978	3933.94219
1979	4011.7643
1980	4428.48318
1981	4722.854
1982	4860.82501
1983	4537.28247
1984	4556.14602
1985	4676.03985
1986	4737.63143
1987	4552.08151
1988	3859.3094
1989	3837.18654
1990	4061.4793
1991	4352.14072
1992	4612.50073
1993	4764.95301
1994	4801.18428
1995	4786.23827
1996	4880.64847
1997	5091.12354
1998	5355.32715
1999	5454.84367
2000	5493.59759
2001	5419.0361
2002	5435.02629
2003	5557.86783
2004	5865.59874
2005	6172.39507
2006	6584.98055
2007	7241.95849
2008	7814.38034
2009	7772.00502
2010	8080.83823
2011	8838.45156
2012	9535.18883
2013	10019.4386
2014	10350.39954
2015	10747.84162
2016	11102.55697
2017	11513.27768