Year	Percent
2003-01-01	52.800
2004-01-01	51.000
2005-01-01	50.000
2006-01-01	47.600
2007-01-01	46.725
2008-01-01	48.200
2009-01-01	46.675
2010-01-01	46.750
2011-01-01	46.625
2012-01-01	44.650
2013-01-01	44.175
2014-01-01	43.000
2015-01-01	40.225
2016-01-01	41.225
2017-01-01	40.325