Year	Percent
2005-01-01	42.325
2006-01-01	43.450
2007-01-01	44.475
2008-01-01	45.475
2009-01-01	45.875
2010-01-01	46.225
2011-01-01	47.225
2012-01-01	48.700
2013-01-01	50.100
2014-01-01	51.775
2015-01-01	53.250
2016-01-01	55.225
2017-01-01	57.050