Year	Percent
1996-01-01	1.6188900000000000
1997-01-01	1.5113600000000000
1998-01-01	1.5303200000000001
1999-01-01	1.6636500000000000
2000-01-01	1.5242799999999999
2001-01-01	1.5815800000000000
2002-01-01	1.6019700000000001
2003-01-01	1.6504500000000000
2004-01-01	1.5395100000000000
2005-01-01	1.3869999999999998
2006-01-01	1.3063700000000000
2007-01-01	1.3272400000000000
2008-01-01	1.4069600000000000
2009-01-01	1.3874300000000000
2010-01-01	1.3489900000000000
2011-01-01	1.5503900000000000
2012-01-01	1.3988300000000000
2013-01-01	1.4019800000000000
2014-01-01	1.3149899999999999
2015-01-01	1.4021500000000000
2016-01-01	1.3102000000000000