Year	Percent
1995-01-01	48.3363391075000
1996-01-01	48.2803254350000
1997-01-01	48.6313199725000
1998-01-01	49.2456857150000
1999-01-01	50.4799669525000
2000-01-01	51.5694258725000
2001-01-01	51.6220669050000
2002-01-01	51.8308789025000
2003-01-01	52.6791621200000
2004-01-01	53.2178407875000
2005-01-01	53.7458781050000
2006-01-01	54.2820107425000
2007-01-01	55.0225468625000
2008-01-01	55.3130258825000
2009-01-01	56.4216539125000
2010-01-01	56.8827691750000
2011-01-01	56.9073770775000
2012-01-01	62.6916666666667
2013-01-01	62.9416666666667
2014-01-01	63.9833333333333
2015-01-01	63.8416666666667
2016-01-01	64.2083333333333
2017-01-01	64.0083333333333