Year	Percent
2005-01-01	56.250
2006-01-01	55.075
2007-01-01	53.850
2008-01-01	52.900
2009-01-01	51.525
2010-01-01	50.625
2011-01-01	49.325
2012-01-01	47.250
2013-01-01	45.375
2014-01-01	43.600
2015-01-01	42.000
2016-01-01	40.200
2017-01-01	38.725