Year	Percent
2000-01-01	37.825
2001-01-01	39.750
2002-01-01	37.800
2003-01-01	36.450
2004-01-01	35.900
2005-01-01	35.700
2006-01-01	34.175
2007-01-01	32.975
2008-01-01	33.050
2009-01-01	33.800
2010-01-01	34.575
2011-01-01	33.525
2012-01-01	33.575
2013-01-01	33.300
2014-01-01	33.825
2015-01-01	32.825
2016-01-01	34.525
2017-01-01	34.800