Year	Percent
1999-01-01	14.3000
2000-01-01	14.3000
2001-01-01	14.3000
2002-01-01	14.3000
2003-01-01	14.3000
2004-01-01	21.3000
2005-01-01	17.1000
2006-01-01	15.0000
2007-01-01	12.3000
2008-01-01	11.5000
2009-01-01	15.3000
2010-01-01	14.8011
2011-01-01	15.4817
2012-01-01	16.0832
2013-01-01	16.5068
2014-01-01	14.7254
2015-01-01	14.9976
2016-01-01	16.0169