Year	Percent
2005-01-01	57.325
2006-01-01	58.400
2007-01-01	58.900
2008-01-01	59.075
2009-01-01	59.600
2010-01-01	60.125
2011-01-01	61.425
2012-01-01	61.675
2013-01-01	62.600
2014-01-01	63.175
2015-01-01	63.400
2016-01-01	64.450
2017-01-01	64.900