Month	Percent
1996-10-31	7
1996-11-30	6.6
1996-12-31	6.3
1997-01-31	6.5
1997-02-28	5.7
1997-03-31	6.5
1997-04-30	5.4
1997-05-31	6.6
1997-06-30	7.9
1997-07-31	8.7
1997-08-31	8.4
1997-09-30	6.7
1997-10-31	6.7
1997-11-30	6.4
1997-12-31	6.4
1998-01-31	6.5
1998-02-28	5.4
1998-03-31	5.6
1998-04-30	5.7
1998-05-31	7
1998-06-30	8
1998-07-31	8.9
1998-08-31	9.4
1998-09-30	8.7
1998-10-31	7.6
1998-11-30	7.7
1998-12-31	6.8
1999-01-31	6.8
1999-02-28	4.3
1999-03-31	6.2
1999-04-30	7.3
1999-05-31	9
1999-06-30	9.2
1999-07-31	10.2
1999-08-31	11.3
1999-09-30	11
1999-10-31	8.7
1999-11-30	8.7
1999-12-31	8
2000-01-31	8.9
2000-02-29	7.4
2000-03-31	8.1
2000-04-30	8.2
2000-05-31	9.1
2000-06-30	9.8
2000-07-31	8.6
2000-08-31	9
2000-09-30	6.9
2000-10-31	8
2000-11-30	6.3
2000-12-31	7
2001-01-31	6.9
2001-02-28	6.9
2001-03-31	6.2
2001-04-30	7.2
2001-05-31	7.9
2001-06-30	10
2001-07-31	9.1
2001-08-31	11.3
2001-09-30	9.9
2001-10-31	11.1
2001-11-30	9.4
2001-12-31	9.9
2002-01-31	9.6
2002-02-28	9.8
2002-03-31	9.3
2002-04-30	10.5
2002-05-31	13
2002-06-30	12.2
2002-07-31	13.4
2002-08-31	13.7
2002-09-30	14.6
2002-10-31	13.4
2002-11-30	10.5
2002-12-31	11.9
2003-01-31	9.7
2003-02-28	9.7
2003-03-31	5.7
2003-04-30	7.5
2003-05-31	8.3
2003-06-30	12.3
2003-07-31	14
2003-08-31	16
2003-09-30	15.5
2003-10-31	15.9
2003-11-30	13
2003-12-31	13.2
2004-01-31	9.8
2004-02-29	10.7
2004-03-31	8.5
2004-04-30	8.3
2004-05-31	7.5
2004-06-30	12
2004-07-31	12.8
2004-08-31	15.1
2004-09-30	11.7
2004-10-31	12.1
2004-11-30	8.8
2004-12-31	9.4
2005-01-31	6.8
2005-02-28	4.7
2005-03-31	3.2
2005-04-30	4.5
2005-05-31	6.8
2005-06-30	6.7
2005-07-31	7.4
2005-08-31	9.2
2005-09-30	10.6
2005-10-31	8.9
2005-11-30	9.3
2005-12-31	8
2006-01-31	2.6
2006-02-28	0.9
2006-03-31	-0.1
2006-04-30	4.7
2006-05-31	5.7
2006-06-30	9.8
2006-07-31	13.4
2006-08-31	13.1
2006-09-30	10
2006-10-31	6.2
2006-11-30	4.4
2006-12-31	6.9
2007-01-31	7.1
2007-02-28	8.4
2007-03-31	3
2007-04-30	4.7
2007-05-31	-0.4
2007-06-30	2.5
2007-07-31	3.7
2007-08-31	7.6
2007-09-30	6.5
2007-10-31	5.9
2007-11-30	3.5
2007-12-31	2
2008-01-31	1.2
2008-02-29	6.2
2008-03-31	8.2
2008-04-30	1.3
2008-05-31	1.8
2008-06-30	2.2
2008-07-31	1.4
2008-08-31	-5.6
2008-09-30	-8
2008-10-31	-6.7
2008-11-30	-4.2
2008-12-31	-15.4
2009-01-31	-12.5
2009-02-28	-12.1
2009-03-31	1.1
2009-04-30	1.2
2009-05-31	1.8
2009-06-30	2.4
2009-07-31	3.7
2009-08-31	3.7
2009-09-30	2
2009-10-31	1.9
2009-11-30	4.3
2009-12-31	6.4
2010-01-31	5.1
2010-02-28	1.9
2010-03-31	0.1
2010-04-30	0
2010-05-31	0.4
2010-06-30	1
2010-07-31	1.6
2010-08-31	2
2010-09-30	1.5
2010-10-31	1.4
2010-11-30	1.1
2010-12-31	1.1
2011-01-31	0.6
2011-02-28	-0.1
2011-03-31	-0.2
2011-04-30	-0.1
2011-05-31	0.5
2011-06-30	1
2011-07-31	1.5
2011-08-31	1.8
2011-09-30	1.6
2011-10-31	1.3
2011-11-30	1.2
2011-12-31	0.7
2012-01-31	0.4
2012-02-29	-0.5
2012-03-31	-0.1
2012-04-30	-0.1
2012-05-31	0.6
2012-06-30	0.6
2012-07-31	1.2
2012-08-31	1.1
2012-09-30	1.2
2012-10-31	0.7
2012-11-30	0.8
2012-12-31	1.1
2013-01-31	1
2013-02-28	0.5
2013-03-31	-0.1
2013-04-30	-0.1
2013-05-31	0.3
2013-06-30	1
2013-07-31	1.7
2013-08-31	2.3
2013-09-30	2.4
2013-10-31	2.3
2013-11-30	2
2013-12-31	1.9
2014-01-31	1.8
2014-02-28	1.6
2014-03-31	1.6
2014-04-30	1.9
2014-05-31	2.4
2014-06-30	2.9
2014-07-31	3.5
2014-08-31	3.5
2014-09-30	3.2
2014-10-31	2.7
2014-11-30	2.7
2014-12-31	2.4
2015-01-31	1.7
2015-02-28	0.9
2015-03-31	1.1