Year	Percent
1996-01-01	2.07
1997-01-01	1.74
1998-01-01	1.92
1999-01-01	1.70
2000-01-01	1.62
2001-01-01	1.69
2002-01-01	1.77
2003-01-01	1.84
2004-01-01	2.04
2005-01-01	2.01
2006-01-01	1.92
2007-01-01	1.72
2008-01-01	1.51
2009-01-01	1.46
2010-01-01	1.26
2011-01-01	1.46
2012-01-01	1.49
2013-01-01	1.52
2014-01-01	1.91
2015-01-01	1.59