Year	US Dollars adjusted for inflation)
1960	1304.69876
1961	1306.59063
1962	1353.03319
1963	1412.20202
1964	1451.18602
1965	1502.79135
1966	1568.7994
1967	1643.75498
1968	1414.69863
1969	1428.91348
1970	1392.75207
1971	1433.11541
1972	1515.18999
1973	1568.61848
1974	1580.58476
1975	1659.8811
1976	1698.97373
1977	1744.63978
1978	1741.63539
1979	1706.07528
1980	1646.41123
1981	1615.67773
1982	1519.16984
1983	1427.24335
1984	1394.99616
1985	1343.77586
1986	1283.09064
1987	1288.90472
1988	1300.64199
1989	1323.78297
1990	1358.24104
1991	1401.90838
1992	1397.17992
1993	1428.36569
1994	1465.80407
1995	1504.39674
1996	1539.34489
1997	1584.1172
1998	1631.57488
1999	1607.21011
2000	1616.53916
2001	1613.41082
2002	1623.51879
2003	1637.80851
2004	1676.22795
2005	1720.09903
2006	1771.9469
2007	1821.79722
2008	1901.8998
2009	1933.7401
2010	1981.1607
2011	2051.15229
2012	2122.38456
2013	2231.47724
2014	2317.25719
2015	2392.98397
2016	2457.62596
2017	2522.79392