Month	Percent
1997-07-31	19.4
1997-08-31	17.1
1997-09-30	19
1997-10-31	15.6
1997-11-30	17.7
1997-12-31	22.5
1998-01-31	17.5
1998-02-28	19.5
1998-03-31	16.9
1998-04-30	19.2
1998-05-31	15.9
1998-06-30	14
1998-07-31	17.4
1998-08-31	18.6
1998-09-30	17.1
1998-10-31	19.4
1998-11-30	11.7
1998-12-31	10
1999-01-31	9.8
1999-02-28	8.3
1999-03-31	8.5
1999-04-30	8.1
1999-05-31	6
1999-06-30	10.5
1999-07-31	4.3
1999-08-31	8.3
1999-09-30	5.4
1999-10-31	6.6
1999-11-30	11.8
1999-12-31	12.3
2000-01-31	9.8
2000-02-29	9.1
2000-03-31	14.5
2000-04-30	11.2
2000-05-31	15.7
2000-06-30	12.6
2000-07-31	14
2000-08-31	18.3
2000-09-30	18
2000-10-31	19.3
2000-11-30	19.4
2000-12-31	19.4
2001-01-31	19.7
2001-02-28	19.1
2001-03-31	17.6
2001-04-30	14.8
2001-05-31	13.3
2001-06-30	16.4
2001-07-31	15
2001-08-31	11.4
2001-09-30	11.4
2001-10-31	10.8
2001-11-30	7.3
2001-12-31	4.4
2002-01-31	6.5
2002-02-28	4.1
2002-03-31	1.6
2002-04-30	3
2002-05-31	2.9
2002-06-30	2.7
2002-07-31	0.7
2002-08-31	-1.8
2002-09-30	5.9
2002-10-31	5.2
2002-11-30	6.3
2002-12-31	4.4
2003-01-31	2.7
2003-02-28	4.1
2003-03-31	3.9
2003-04-30	7.8
2003-05-31	7
2003-06-30	4.4
2003-07-31	7.6
2003-08-31	5.4
2003-09-30	3.1
2003-10-31	5.5
2003-11-30	4.9
2003-12-31	9.6
2004-01-31	13.3
2004-02-29	9.9
2004-03-31	12.1
2004-04-30	12.7
2004-05-31	12.2
2004-06-30	13.6
2004-07-31	15.5
2004-08-31	19.4
2004-09-30	19.1
2004-10-31	16.5
2004-11-30	17.1
2004-12-31	18.1
2005-01-31	16
2005-02-28	19.2
2005-03-31	17.1
2005-04-30	14.8
2005-05-31	16.8
2005-06-30	14.1
2005-07-31	15.2
2005-08-31	12.5
2005-09-30	13.2
2005-10-31	13.8
2005-11-30	9.3
2005-12-31	12.9
2006-01-31	15.3
2006-02-28	16.7
2006-03-31	19.2
2006-04-30	25.6
2006-05-31	24.1
2006-06-30	30.1
2006-07-31	26.7
2006-08-31	28.6
2006-09-30	25.4
2006-10-31	24.1
2006-11-30	30.9
2006-12-31	23.3
2007-01-31	25.7
2007-02-28	23.7
2007-03-31	21.4
2007-04-30	17.6
2007-05-31	22
2007-06-30	17.5
2007-07-31	19.4
2007-08-31	23.5
2007-09-30	26.6
2007-10-31	25.7
2007-11-30	24.7
2007-12-31	28.2
2008-01-31	26.4
2008-02-29	25
2008-03-31	24.5
2008-04-30	29.1
2008-05-31	22
2008-06-30	29.7
2008-07-31	32.6
2008-08-31	32.9
2008-09-30	34.7
2008-10-31	45.8
2008-11-30	45.7
2008-12-31	51.3
2009-01-31	49.7
2009-02-28	53.9
2009-03-31	56
2009-04-30	45.3
2009-05-31	47.1
2009-06-30	35.4
2009-07-31	31.4
2009-08-31	26
2009-09-30	22.9
2009-10-31	17.7
2009-11-30	14.5
2009-12-31	7.7
2010-01-31	6.4
2010-02-28	2.4
2010-03-31	0.7
2010-04-30	0.6
2010-05-31	1.1
2010-06-30	3.1
2010-07-31	0.6
2010-08-31	-2.4
2010-09-30	-2.6
2010-10-31	-3.5
2010-11-30	-4.3
2010-12-31	-7.2
2011-01-31	-9.1
2011-02-28	-7.2
2011-03-31	-7.1
2011-04-30	-3.5
2011-05-31	-4.6
2011-06-30	-4.6
2011-07-31	-3.8
2011-08-31	0.2
2011-09-30	-2.7
2011-10-31	-9
2011-11-30	-8.3
2011-12-31	-4.9
2012-01-31	-7.2
2012-02-29	-10
2012-03-31	-12.4
2012-04-30	-13.4
2012-05-31	-13.7
2012-06-30	-17.8
2012-07-31	-17.6
2012-08-31	-18.8
2012-09-30	-17.5
2012-10-31	-14.4
2012-11-30	-12.5
2012-12-31	-8
2013-01-31	-7.1
2013-02-28	-5.3
2013-03-31	-5.5
2013-04-30	-6.8
2013-05-31	-6
2013-06-30	-3.1
2013-07-31	-2.2
2013-08-31	0.1
2013-09-30	0
2013-10-31	-2.5
2013-11-30	-2.4
2013-12-31	-10.9
2014-01-31	-11
2014-02-28	-10.3
2014-03-31	-15.2
2014-04-30	-17.1
2014-05-31	-17
2014-06-30	-15.7
2014-07-31	-15.2
2014-08-31	-17.6
2014-09-30	-18.9
2014-10-31	-18.3
2014-11-30	-20.1
2014-12-31	-15.7
2015-01-31	-15.9
2015-02-28	-16.4
2015-03-31	-9
2015-04-30	-6.3
2015-05-31	-5.8
2015-06-30	-8
2015-07-31	-5.5
2015-08-31	-6.2
2015-09-30	-6.5
2015-10-31	-6.2
2015-11-30	-4.6
2015-12-31	-5.1
2016-01-31	-3.5
2016-02-29	-0.7
2016-03-31	-1.5
2016-04-30	-3.8
2016-05-31	-2.2
2016-06-30	2.3
2016-07-31	-1.1
2016-08-31	0.2
2016-09-30	1.4
2016-10-31	3.5
2016-11-30	4.9
2016-12-31	4.4
2017-01-31	11.4
2017-02-28	7.2
2017-03-31	8.8
2017-04-30	13.6
2017-05-31	11.6
2017-06-30	9.8
2017-07-31	10.4
2017-08-31	12.2
2017-09-30	12.8
2017-10-31	10.9
2017-11-30	10.5
2017-12-31	10.7
2018-01-31	4.2
2018-02-28	4.7
2018-03-31	2.4
2018-04-30	0.3
2018-05-31	-2.2
2018-06-30	0
2018-07-31	-3.7
2018-08-31	-5.5
2018-09-30	-3.1
2018-10-31	-2.4
2018-11-30	-2.1
2018-12-31	-1
2019-01-31	-1.1
2019-02-28	-0.5
2019-03-31	2.4
2019-04-30	1.3
2019-05-31	2.9
2019-06-30	1.4
2019-07-31	8.3
2019-08-31	12.1
2019-09-30	8.8
2019-10-31	10.2
2019-11-30	9.9
2019-12-31	10.6
2020-01-31	9
2020-02-29	11.7
2020-03-31	14.7
2020-04-30	16.5
2020-05-31	14.7
2020-06-30	15.1
2020-07-31	11.8
2020-08-31	6.7
2020-09-30	6.8
2020-10-31	5.5
2020-11-30	6.3
2020-12-31	4.5
2021-01-31	4.8
2021-02-28	0.1
2021-03-31	-5.9
2021-04-30	-6
2021-05-31	-3
2021-06-30	-2.7
2021-07-31	-5
2021-08-31	-2.7
2021-09-30	-3.5
2021-10-31	-2.9
2021-11-30	-2.1
2021-12-31	-0.3
2022-01-31	-0.7
2022-02-28	5.2
2022-03-31	7
2022-04-30	5.8
2022-05-31	5.2
2022-06-30	2.5
2022-07-31	6.2
2022-08-31	4.2
2022-09-30	8.2
2022-10-31	5
2022-11-30	-1.3
2022-12-31	-3.2
2023-01-31	-2.3
2023-02-28	-8.9
2023-03-31	-10
2023-04-30	-9.2
2023-05-31	-9.9
2023-06-30	-9.4
2023-07-31	-10.3
2023-08-31	-8.7
2023-09-30	-13.3
2023-10-31	-9.4
2023-11-30	-4.5
2023-12-31	-3.6