Year	Percent
1996-01-01	1.6407599999999998
1997-01-01	1.5749500000000000
1998-01-01	1.5147600000000000
1999-01-01	1.5761700000000000
2000-01-01	1.6185500000000000
2001-01-01	1.6066200000000002
2002-01-01	1.5423500000000000
2003-01-01	1.6453099999999998
2004-01-01	1.3828600000000000
2005-01-01	1.1554400000000000
2006-01-01	1.2009600000000000
2007-01-01	1.1447100000000001
2008-01-01	0.9279069999999999
2009-01-01	1.1339000000000000
2010-01-01	1.2586600000000001
2011-01-01	1.3121100000000000
2012-01-01	1.2098600000000000
2013-01-01	1.3816400000000000
2014-01-01	1.3466000000000000
2015-01-01	1.5441900000000000
2016-01-01	1.4755200000000002