Year	Percent
2005-01-01	59.300
2006-01-01	59.800
2007-01-01	59.900
2008-01-01	61.300
2009-01-01	61.600
2010-01-01	59.975
2011-01-01	60.550
2012-01-01	60.825
2013-01-01	61.150
2014-01-01	61.900
2015-01-01	62.300
2016-01-01	62.825
2017-01-01	62.600