Year	Percent
1990-01-01	0.49231000000000000
1991-01-01	0.45560300000000000
1992-01-01	0.46995500000000000
1993-01-01	0.47205600000000003
1994-01-01	0.45595300000000000
1995-01-01	0.48810699999999996
1996-01-01	0.46587900000000000
1997-01-01	0.47139200000000003
1998-01-01	0.55354399999999990
1999-01-01	0.57685200000000000
2000-01-01	0.54582200000000000
2001-01-01	0.55758000000000000
2002-01-01	0.55432500000000000
2003-01-01	0.41098800000000000
2004-01-01	0.41314399999999996
2005-01-01	0.40289100000000000
2006-01-01	0.44607299999999994
2007-01-01	0.48975600000000000
2008-01-01	0.52356600000000000
2009-01-01	0.52318900000000000
2010-01-01	0.50387200000000000
2011-01-01	0.53782299999999990
2012-01-01	0.56183600000000000
2013-01-01	0.61600900000000000
2014-01-01	0.58542600000000000
2015-01-01	0.61187000000000000
2016-01-01	0.67021700000000010