Year	Percent
2005-01-01	36.075
2006-01-01	36.650
2007-01-01	37.750
2008-01-01	37.550
2009-01-01	34.825
2010-01-01	33.400
2011-01-01	32.975
2012-01-01	31.700
2013-01-01	31.075
2014-01-01	30.625
2015-01-01	30.850
2016-01-01	31.375
2017-01-01	32.300