Annual Percent
1960-01-01 68.1875228424286
1961-01-01 68.1939978893899
1962-01-01 67.4652650071247
1963-01-01 66.2339455594164
1964-01-01 65.3982534147162
1965-01-01 64.9199563716870
1966-01-01 64.9833155369268
1967-01-01 65.1325593198126
1968-01-01 65.2113587838259
1969-01-01 64.8465602520252
1970-01-01 64.6695414651862
1971-01-01 64.2857545478434
1972-01-01 63.6177818152694
1973-01-01 63.9875026511755
1974-01-01 62.9594985126942
1975-01-01 62.0382498705908
1976-01-01 61.8810556757713
1977-01-01 62.0450879551149
1978-01-01 62.1482450728625
1979-01-01 62.2943585833703
1980-01-01 62.2062007330588
1981-01-01 62.1084793865900
1982-01-01 62.0700057627371
1983-01-01 62.3501523806433
1984-01-01 62.0014559543168
1985-01-01 61.6862723939969
1986-01-01 61.4003431756017
1987-01-01 61.1349615497692
1988-01-01 61.3272566482719
1989-01-01 61.7434400386239
1990-01-01 62.2379211058714
1991-01-01 62.7171138059745
1992-01-01 62.7444100875755
1993-01-01 62.2831285874774
1994-01-01 61.8351537723566
1995-01-01 61.4748696726417
1996-01-01 61.4053161299254
1997-01-01 61.5658190933798
1998-01-01 60.7806710749694
1999-01-01 60.0107723493443
2000-01-01 59.5605557031092
2001-01-01 58.9504635419001
2002-01-01 57.9809988096516
2003-01-01 57.6752500209223
2004-01-01 57.6498868846832
2005-01-01 57.8028177138213
2006-01-01 57.9637145011078
2007-01-01 58.1175869396361
2008-01-01 57.8396251618770
2009-01-01 56.9079319438444
2010-01-01 56.7158659810312
2011-01-01 56.6298608854374
2012-01-01 56.5345514387308
2013-01-01 56.9820309722192
2014-01-01 57.3818967756728
2015-01-01 57.6489914576005
2016-01-01 58.2175121365128
2017-01-01 58.8256441034923