Year	Percent
1995-01-01	34.6327407725000
1996-01-01	34.3372684725000
1997-01-01	34.0348220800000
1998-01-01	33.6400714050000
1999-01-01	34.2032693150000
2000-01-01	35.5424900575000
2001-01-01	34.7522643200000
2002-01-01	32.7246766250000
2003-01-01	33.6349640925000
2004-01-01	34.0018536400000
2005-01-01	34.3849842925000
2006-01-01	34.6971737025000
2007-01-01	34.1352561450000
2008-01-01	33.2550300525000
2009-01-01	33.6826644025000
2010-01-01	33.6797864975000
2011-01-01	32.1421252050000
2012-01-01	48.5833333333333
2013-01-01	48.1750000000000
2014-01-01	48.5500000000000
2015-01-01	47.9666666666667
2016-01-01	47.9416666666667
2017-01-01	48.0166666666667