Year	Percent
1990-01-01	0.35809400000000000
1991-01-01	0.39388700000000000
1992-01-01	0.44340500000000000
1993-01-01	0.52016000000000010
1994-01-01	0.48593500000000006
1995-01-01	0.52081800000000000
1996-01-01	0.49950100000000003
1997-01-01	0.58899799999999990
1998-01-01	0.57316899999999990
1999-01-01	0.64806000000000010
2000-01-01	0.72231200000000000
2001-01-01	0.69521600000000000
2002-01-01	0.85741800000000000
2003-01-01	0.69320300000000000
2004-01-01	0.54395799999999990
2005-01-01	0.58975400000000000
2006-01-01	0.68282800000000000
2007-01-01	0.90557800000000010
2008-01-01	0.91467700000000010
2009-01-01	0.88758200000000000
2010-01-01	0.84000599999999990
2011-01-01	0.93291200000000010
2012-01-01	1.03509000000000000
2013-01-01	0.95305499999999990
2014-01-01	1.01622000000000010
2015-01-01	1.07482000000000000