Quarter	Percent
1996-10-01	25.34000000000000
1997-01-01	23.87000000000000
1997-04-01	23.58000000000000
1997-07-01	23.58000000000000
1997-10-01	45.09000000000000
1998-01-01	38.54000000000000
1998-04-01	29.41000000000000
1998-07-01	42.34000000000000
1998-10-01	39.41000000000000
1999-01-01	46.00000000000000
1999-04-01	21.00000000000000
1999-07-01	19.00000000000000
1999-10-01	19.00000000000000
2000-01-01	18.50000000000000
2000-04-01	17.50000000000000
2000-07-01	16.50000000000000
2000-10-01	15.75000000000000
2001-01-01	15.75000000000000
2001-04-01	18.25000000000000
2001-07-01	19.00000000000000
2001-10-01	19.00000000000000
2002-01-01	18.50000000000000
2002-04-01	18.50000000000000
2002-07-01	18.00000000000000
2002-10-01	25.00000000000000
2003-01-01	26.50000000000000
2003-04-01	26.00000000000000
2003-07-01	20.00000000000000
2003-10-01	16.50000000000000
2004-01-01	16.25000000000000
2004-04-01	16.00000000000000
2004-07-01	16.25000000000000
2004-10-01	17.75000000000000
2005-01-01	19.25000000000000
2005-04-01	19.75000000000000
2005-07-01	19.50000000000000
2005-10-01	18.00000000000000
2006-01-01	16.50000000000000
2006-04-01	15.25000000000000
2006-07-01	14.25000000000000
2006-10-01	13.25000000000000
2007-01-01	12.75000000000000
2007-04-01	12.00000000000000
2007-07-01	11.25000000000000
2007-10-01	11.25000000000000
2008-01-01	11.25000000000000
2008-04-01	12.25000000000000
2008-07-01	13.75000000000000
2008-10-01	13.75000000000000
2009-01-01	11.25000000000000
2009-04-01	9.25000000000000
2009-07-01	8.75000000000000
2009-10-01	8.75000000000000
2010-01-01	8.75000000000000
2010-04-01	10.25000000000000
2010-07-01	10.75000000000000
2010-10-01	10.75000000000000
2011-01-01	11.75000000000000
2011-04-01	12.25000000000000
2011-07-01	12.00000000000000
2011-10-01	11.00000000000000
2012-01-01	9.82000589626213
2012-04-01	8.50000000000000
2012-07-01	7.50000000000000
2012-10-01	7.25000000000000
2013-01-01	7.25000000000000
2013-04-01	8.00000000000000
2013-07-01	9.00000000000000
2013-10-01	10.00000000000000
2014-01-01	10.75000000000000
2014-04-01	11.00000000000000
2014-07-01	11.00000000000000
2014-10-01	11.75000000000000
2015-01-01	12.75000000000000
2015-04-01	13.75000000000000
2015-07-01	14.25000000000000
2015-10-01	14.25000000000000
2016-01-01	14.25000000000000
2016-04-01	14.25000000000000
2016-07-01	14.25000000000000
2016-10-01	13.75000000000000
2017-01-01	12.25000000000000
2017-04-01	10.25000000000000
2017-07-01	8.25000000000000
2017-10-01	7.00000000000000
2018-01-01	6.50000000000000
2018-04-01	6.50000000000000
2018-07-01	6.50000000000000