Year	Percent
1999-01-01	0.41414300000000004
2000-01-01	0.21987700000000000
2001-01-01	0.27044000000000000
2002-01-01	0.43166400000000005
2003-01-01	1.15359000000000000
2004-01-01	1.01197000000000000
2005-01-01	0.96389500000000010
2006-01-01	1.20599000000000000
2007-01-01	1.21049000000000000
2008-01-01	0.66162100000000000
2009-01-01	0.97937400000000000
2010-01-01	0.84340100000000010
2011-01-01	0.54547900000000000
2012-01-01	0.44222200000000000
2013-01-01	0.44731200000000000
2014-01-01	0.37429400000000000
2015-01-01	0.35842199999999996
2016-01-01	0.56645500000000000