Year	Percent
2006-01-01	25.475
2007-01-01	25.600
2008-01-01	26.450
2009-01-01	27.625
2010-01-01	30.100
2011-01-01	32.150
2012-01-01	33.675
2013-01-01	34.800
2014-01-01	34.550
2015-01-01	35.675
2016-01-01	36.675
2017-01-01	38.300