Year	Percent
2005-01-01	56.800
2006-01-01	53.675
2007-01-01	51.125
2008-01-01	49.475
2009-01-01	47.125
2010-01-01	45.400
2011-01-01	43.225
2012-01-01	41.850
2013-01-01	39.200
2014-01-01	37.100
2015-01-01	36.175
2016-01-01	34.100
2017-01-01	32.550