Year	Percent
2005-01-01	43.625
2006-01-01	45.300
2007-01-01	47.175
2008-01-01	48.675
2009-01-01	47.500
2010-01-01	47.925
2011-01-01	49.725
2012-01-01	48.600
2013-01-01	48.425
2014-01-01	47.700
2015-01-01	46.450
2016-01-01	46.925
2017-01-01	47.400