Year	Percent
2001-01-01	12.5605
2002-01-01	13.2876
2003-01-01	12.7877
2004-01-01	12.0976
2005-01-01	11.3609
2006-01-01	12.0643
2007-01-01	12.4767
2008-01-01	13.6097
2009-01-01	14.9724
2010-01-01	14.8396
2011-01-01	13.1289
2012-01-01	12.7968
2013-01-01	12.8899
2014-01-01	12.1180
2015-01-01	11.7802
2016-01-01	11.1568
2017-01-01	10.3241