Year	Percent
2000-01-01	37.575
2001-01-01	37.750
2002-01-01	35.775
2003-01-01	37.775
2004-01-01	37.875
2005-01-01	39.850
2006-01-01	42.025
2007-01-01	39.900
2008-01-01	37.750
2009-01-01	41.050
2010-01-01	43.150
2011-01-01	43.375
2012-01-01	42.175
2013-01-01	41.775
2014-01-01	44.200
2015-01-01	43.375
2016-01-01	44.825
2017-01-01	46.050