Year	Percent
1996-01-01	8.458060000000001
1997-01-01	16.316600000000000
1998-01-01	17.533600000000000
1999-01-01	12.671300000000000
2000-01-01	15.716500000000000
2001-01-01	10.959100000000000
2002-01-01	14.925800000000000
2003-01-01	20.660400000000000
2004-01-01	24.543800000000000
2005-01-01	17.098800000000000
2006-01-01	15.926800000000000
2007-01-01	16.489600000000000
2008-01-01	17.137400000000000
2009-01-01	14.116600000000000
2010-01-01	15.682800000000000
2011-01-01	15.405500000000000
2012-01-01	13.978100000000000
2013-01-01	13.884900000000000
2014-01-01	10.611200000000000
2015-01-01	4.241360000000000
2016-01-01	6.174100000000000