Year	Percent
2003-01-01	47.200
2004-01-01	49.000
2005-01-01	50.000
2006-01-01	52.400
2007-01-01	53.275
2008-01-01	51.800
2009-01-01	53.325
2010-01-01	53.250
2011-01-01	53.375
2012-01-01	55.350
2013-01-01	55.825
2014-01-01	57.000
2015-01-01	59.775
2016-01-01	58.775
2017-01-01	59.675