Year	Percent
2000-01-01	8.818670000000000
2001-01-01	8.381450000000000
2002-01-01	8.569150000000000
2003-01-01	5.961430000000000
2004-01-01	7.012040000000000
2005-01-01	5.986790000000000
2006-01-01	6.093540000000000
2007-01-01	20.785300000000000
2008-01-01	7.031630000000001
2009-01-01	6.853420000000000
2010-01-01	8.126010000000000
2011-01-01	11.935400000000000
2012-01-01	12.548200000000000
2013-01-01	12.270100000000000
2014-01-01	13.018500000000000
2015-01-01	14.117400000000000
2016-01-01	14.258100000000000