Year	Percent
2003-01-01	57.225
2004-01-01	56.275
2005-01-01	56.425
2006-01-01	57.250
2007-01-01	57.525
2008-01-01	57.600
2009-01-01	55.975
2010-01-01	55.000
2011-01-01	53.250
2012-01-01	49.200
2013-01-01	47.650
2014-01-01	46.900
2015-01-01	44.875
2016-01-01	43.875
2017-01-01	43.100