Year	Percent
2006-01-01	28.700
2007-01-01	28.150
2008-01-01	28.725
2009-01-01	29.900
2010-01-01	31.125
2011-01-01	32.775
2012-01-01	33.125
2013-01-01	33.000
2014-01-01	33.400
2015-01-01	34.100
2016-01-01	35.650
2017-01-01	36.825