Year	Percent
2003-01-01	34.900
2004-01-01	35.100
2005-01-01	34.900
2006-01-01	39.600
2007-01-01	38.700
2008-01-01	35.875
2009-01-01	33.375
2010-01-01	34.150
2011-01-01	34.950
2012-01-01	34.300
2013-01-01	33.675
2014-01-01	33.250
2015-01-01	34.600
2016-01-01	35.725
2017-01-01	36.375