Year	Percent
2006-01-01	27.425
2007-01-01	27.625
2008-01-01	28.800
2009-01-01	30.975
2010-01-01	33.425
2011-01-01	35.250
2012-01-01	36.700
2013-01-01	38.375
2014-01-01	38.750
2015-01-01	40.225
2016-01-01	41.900
2017-01-01	43.700