Year	US Dollars adjusted for inflation)
1965	1113.19282
1966	1128.57679
1967	1106.69902
1968	1195.52309
1969	1224.96614
1970	1254.2347
1971	1356.58082
1972	1562.58033
1973	1518.51686
1974	1605.08224
1975	1681.6917
1976	1773.57929
1977	1792.77309
1978	1864.14439
1979	1938.45424
1980	2028.98009
1981	2083.01008
1982	2014.57033
1983	2049.11915
1984	2106.86267
1985	2166.91358
1986	2082.13092
1987	2168.95351
1988	2121.10365
1989	2110.04297
1990	2227.47056
1991	2263.60845
1992	2387.671
1993	2389.50095
1994	2418.1837
1995	2432.31251
1996	2566.12859
1997	2668.81055
1998	2762.55429
1999	2897.98369
2000	3004.61077
2001	3091.10277
2002	3107.02064
2003	3228.46383
2004	3403.10523
2005	3492.16594
2006	3641.5434
2007	3847.40697
2008	3968.35256
2009	4044.62969
2010	4140.15177
2011	4014.91679
2012	4127.40109
2013	4196.78421
2014	4271.32685
2015	4270.87405
2016	4269.13977
2017	4303.96361