Year	Percent
1996-01-01	0.43711400000000006
1997-01-01	0.50933700000000000
1998-01-01	0.53021900000000000
1999-01-01	0.67301099999999990
2000-01-01	0.82528700000000010
2001-01-01	1.11773000000000000
2002-01-01	1.59757000000000020
2003-01-01	1.62470000000000000
2004-01-01	1.80005000000000000
2005-01-01	2.73088000000000000
2006-01-01	2.05205000000000000
2007-01-01	2.05205000000000000
2008-01-01	1.86182999999999990
2009-01-01	2.40029000000000000
2010-01-01	2.18838000000000000
2011-01-01	1.99243000000000000
2012-01-01	2.24839000000000000
2013-01-01	2.04943000000000000
2014-01-01	1.89283000000000000
2015-01-01	2.28585000000000000