Year	Percent
1990-01-01	1.37500
1991-01-01	1.34545
1992-01-01	1.29000
1993-01-01	1.31000
1994-01-01	1.22000
1995-01-01	1.20000
1996-01-01	1.15000
1997-01-01	1.11000
1998-01-01	1.04000
1999-01-01	1.03522
2000-01-01	0.94000
2001-01-01	1.07531
2002-01-01	1.10500
2003-01-01	1.15000
2004-01-01	1.11500
2005-01-01	1.05000
2006-01-01	1.05000
2007-01-01	1.04000
2008-01-01	1.03000
2009-01-01	1.06000
2010-01-01	0.97500
2011-01-01	0.98000
2012-01-01	1.00000
2013-01-01	1.05000
2014-01-01	1.11000
2015-01-01	1.15000