Year	Percent
2000-01-01	1.2520000000000000
2001-01-01	1.2090000000000000
2002-01-01	1.0390000000000001
2003-01-01	0.7900000000000000
2004-01-01	0.7800000000000000
2005-01-01	0.8500000000000000
2006-01-01	0.7900000000000000
2007-01-01	0.7900000000000000
2008-01-01	0.8800000000000000
2009-01-01	0.8500000000000000
2010-01-01	0.8100000000000000
2011-01-01	0.7900000000000000
2012-01-01	0.7300000000000000
2013-01-01	0.7300000000000000
2014-01-01	0.7800000000000000
2015-01-01	0.8000000000000000