Year	US Dollars adjusted for inflation)
1960	1205.26063
1961	1276.47651
1962	1242.73298
1963	1367.32366
1964	1545.87327
1965	1441.02482
1966	1548.58657
1967	1560.95153
1968	1692.16358
1969	1782.17739
1970	1886.62157
1971	1975.73434
1972	1966.84828
1973	1987.8344
1974	1978.00372
1975	2042.96719
1976	2202.09099
1977	2256.93426
1978	2391.92388
1979	2341.66109
1980	1994.71511
1981	1976.28253
1982	1896.96078
1983	1747.9398
1984	1632.64566
1985	1639.95874
1986	1629.99567
1987	1565.43783
1988	1527.15612
1989	1517.06964
1990	1448.03364
1991	1398.22024
1992	1346.79807
1993	1298.84419
1994	1266.5316
1995	1314.11994
1996	1372.7902
1997	1382.62159
1998	1410.73839
1999	1396.99955
2000	1336.42961
2001	1310.28647
2002	1264.22231
2003	1224.96834
2004	1218.12035
2005	1216.20847
2006	1210.66821
2007	1207.08719
2008	1211.62384
2009	1223.51062
2010	1219.7491
2011	1138.66496
2012	1229.7782
2013	1305.70923
2014	1384.91035
2015	1469.73018
2016	1552.86101
2017	1632.67749