Year	Percent
1996-01-01	1.7934000000000000
1997-01-01	1.8945000000000000
1998-01-01	1.7689900000000000
1999-01-01	1.7168900000000002
2000-01-01	1.6018700000000001
2001-01-01	1.3128900000000000
2002-01-01	1.2383700000000000
2003-01-01	1.1558200000000000
2004-01-01	1.4693800000000000
2005-01-01	1.4783200000000000
2006-01-01	1.3715600000000001
2007-01-01	2.1766200000000000
2008-01-01	1.4723300000000000
2009-01-01	1.4636400000000000
2010-01-01	1.4958500000000000
2011-01-01	1.6178299999999999
2012-01-01	1.7963600000000000
2013-01-01	1.8736800000000000
2014-01-01	1.6788000000000000
2015-01-01	1.6656700000000000
2016-01-01	1.2837399999999999