Year	Percent
2000-01-01	11.5000
2001-01-01	11.8000
2002-01-01	12.2000
2003-01-01	12.8000
2004-01-01	13.4000
2005-01-01	13.5000
2006-01-01	13.8000
2007-01-01	13.8000
2008-01-01	15.4000
2009-01-01	16.9000
2010-01-01	17.9568
2011-01-01	17.4882
2012-01-01	17.5213
2013-01-01	17.7312
2014-01-01	17.0472
2015-01-01	17.2261
2016-01-01	17.3312