Year	Percent
1999-01-01	59.526200000000000
2000-01-01	59.405900000000000
2001-01-01	18.939400000000000
2002-01-01	10.559000000000001
2003-01-01	6.521740000000000
2004-01-01	14.914400000000000
2005-01-01	9.739500000000000
2006-01-01	10.209200000000000
2007-01-01	11.381900000000000
2008-01-01	12.759900000000000
2009-01-01	18.605100000000000
2010-01-01	12.193600000000000
2011-01-01	12.425999999999998
2012-01-01	17.782100000000000
2013-01-01	15.547000000000000
2014-01-01	15.224700000000000
2015-01-01	13.836600000000000
2016-01-01	17.142700000000000