Month	Percent
1997-07-31	26.4
1997-08-31	24.7
1997-09-30	26.5
1997-10-31	21.6
1997-11-30	24.4
1997-12-31	26.7
1998-01-31	23.9
1998-02-28	25
1998-03-31	24.6
1998-04-30	26.5
1998-05-31	23
1998-06-30	24.1
1998-07-31	26
1998-08-31	20.7
1998-09-30	22
1998-10-31	23.6
1998-11-30	18.2
1998-12-31	17.3
1999-01-31	13.4
1999-02-28	11.8
1999-03-31	8.9
1999-04-30	11.2
1999-05-31	8.3
1999-06-30	2.9
1999-07-31	-3.7
1999-08-31	2.2
1999-09-30	-5.2
1999-10-31	-4.4
1999-11-30	-4.2
1999-12-31	-2.7
2000-01-31	-0.5
2000-02-29	-0.8
2000-03-31	7.2
2000-04-30	3.6
2000-05-31	6.1
2000-06-30	10.2
2000-07-31	12.2
2000-08-31	12.9
2000-09-30	13.2
2000-10-31	15.9
2000-11-30	14
2000-12-31	14.3
2001-01-31	17.4
2001-02-28	15.4
2001-03-31	9.8
2001-04-30	11.5
2001-05-31	8.6
2001-06-30	6.5
2001-07-31	7.5
2001-08-31	8.6
2001-09-30	12.3
2001-10-31	10.9
2001-11-30	8.6
2001-12-31	3.1
2002-01-31	-0.2
2002-02-28	1.3
2002-03-31	-0.8
2002-04-30	-0.7
2002-05-31	-2.8
2002-06-30	1.9
2002-07-31	0.2
2002-08-31	0.4
2002-09-30	1.1
2002-10-31	-0.8
2002-11-30	1.3
2002-12-31	5.8
2003-01-31	2.5
2003-02-28	2.2
2003-03-31	3.2
2003-04-30	5.9
2003-05-31	9.1
2003-06-30	8.6
2003-07-31	6.3
2003-08-31	0.6
2003-09-30	2.4
2003-10-31	0.8
2003-11-30	2
2003-12-31	2.9
2004-01-31	10.1
2004-02-29	9.6
2004-03-31	6.8
2004-04-30	3.8
2004-05-31	6.3
2004-06-30	4.6
2004-07-31	7.3
2004-08-31	11.1
2004-09-30	7.6
2004-10-31	11
2004-11-30	10.9
2004-12-31	13.1
2005-01-31	10.9
2005-02-28	13
2005-03-31	17.7
2005-04-30	17.6
2005-05-31	18.6
2005-06-30	16
2005-07-31	19
2005-08-31	16.6
2005-09-30	24.2
2005-10-31	25.4
2005-11-30	27.1
2005-12-31	28.1
2006-01-31	26.7
2006-02-28	24.5
2006-03-31	24.3
2006-04-30	27.5
2006-05-31	23.7
2006-06-30	30.5
2006-07-31	28.6
2006-08-31	29.6
2006-09-30	29.4
2006-10-31	27.5
2006-11-30	23.3
2006-12-31	23.9
2007-01-31	23.8
2007-02-28	23.1
2007-03-31	24.3
2007-04-30	23.7
2007-05-31	26.5
2007-06-30	22.3
2007-07-31	24.1
2007-08-31	29.7
2007-09-30	26.4
2007-10-31	23
2007-11-30	25.2
2007-12-31	23.7
2008-01-31	28.2
2008-02-29	24.9
2008-03-31	23.1
2008-04-30	22.4
2008-05-31	19.9
2008-06-30	23.5
2008-07-31	22.9
2008-08-31	21.6
2008-09-30	25.1
2008-10-31	40.2
2008-11-30	43.9
2008-12-31	44.8
2009-01-31	47.9
2009-02-28	51.6
2009-03-31	50.5
2009-04-30	48.3
2009-05-31	46.9
2009-06-30	38.7
2009-07-31	40.4
2009-08-31	33.8
2009-09-30	30
2009-10-31	25.4
2009-11-30	20.4
2009-12-31	13.2
2010-01-31	8.3
2010-02-28	5.9
2010-03-31	3.4
2010-04-30	4
2010-05-31	2.8
2010-06-30	3.3
2010-07-31	1.6
2010-08-31	0.6
2010-09-30	-1.5
2010-10-31	-5.5
2010-11-30	-6.3
2010-12-31	-6.6
2011-01-31	-7.3
2011-02-28	-6
2011-03-31	-5.3
2011-04-30	-4.4
2011-05-31	-3.1
2011-06-30	-3.7
2011-07-31	-4.8
2011-08-31	-4
2011-09-30	-6.6
2011-10-31	-9.9
2011-11-30	-9.4
2011-12-31	-9.8
2012-01-31	-10.5
2012-02-29	-14.9
2012-03-31	-16.6
2012-04-30	-15.9
2012-05-31	-16.6
2012-06-30	-19.7
2012-07-31	-19.3
2012-08-31	-18.3
2012-09-30	-16.9
2012-10-31	-15.9
2012-11-30	-15.9
2012-12-31	-11.4
2013-01-31	-10.8
2013-02-28	-8
2013-03-31	-8.6
2013-04-30	-10
2013-05-31	-10
2013-06-30	-6.1
2013-07-31	-5.2
2013-08-31	-3
2013-09-30	-2
2013-10-31	-2.6
2013-11-30	-1
2013-12-31	-9.1
2014-01-31	-8.7
2014-02-28	-6.1
2014-03-31	-10
2014-04-30	-11.3
2014-05-31	-11.8
2014-06-30	-11.3
2014-07-31	-12.6
2014-08-31	-14
2014-09-30	-17.5
2014-10-31	-18.2
2014-11-30	-18.6
2014-12-31	-14.8
2015-01-31	-17.1
2015-02-28	-19.2
2015-03-31	-13.2
2015-04-30	-11.5
2015-05-31	-9.8
2015-06-30	-12.5
2015-07-31	-10
2015-08-31	-13.5
2015-09-30	-15.4
2015-10-31	-13.5
2015-11-30	-13
2015-12-31	-13.5
2016-01-31	-12.5
2016-02-29	-8.6
2016-03-31	-11.7
2016-04-30	-13.2
2016-05-31	-10.6
2016-06-30	-4.7
2016-07-31	-3.7
2016-08-31	1.7
2016-09-30	4
2016-10-31	7.3
2016-11-30	8.4
2016-12-31	7.3
2017-01-31	12.3
2017-02-28	7.5
2017-03-31	12.5
2017-04-30	18.4
2017-05-31	13.2
2017-06-30	7
2017-07-31	4.7
2017-08-31	4.6
2017-09-30	7.7
2017-10-31	5.3
2017-11-30	2.6
2017-12-31	4
2018-01-31	6.3
2018-02-28	6.5
2018-03-31	-0.7
2018-04-30	-4.1
2018-05-31	-2.7
2018-06-30	-2.6
2018-07-31	-2.2
2018-08-31	-5.1
2018-09-30	-5.9
2018-10-31	-5.2
2018-11-30	-5.1
2018-12-31	-1.9
2019-01-31	-7
2019-02-28	-5
2019-03-31	-1.4
2019-04-30	1.3
2019-05-31	-2
2019-06-30	-0.5
2019-07-31	0.8
2019-08-31	2.9
2019-09-30	5.1
2019-10-31	3.5
2019-11-30	7
2019-12-31	4.8
2020-01-31	8.8
2020-02-29	8.3
2020-03-31	16.1
2020-04-30	15.9
2020-05-31	18.3
2020-06-30	19.5
2020-07-31	19.5
2020-08-31	14.1
2020-09-30	14.6
2020-10-31	13.8
2020-11-30	11.7
2020-12-31	10.9
2021-01-31	5.8
2021-02-28	6.1
2021-03-31	-0.3
2021-04-30	-3.1
2021-05-31	-2.4
2021-06-30	-3.2
2021-07-31	-3.3
2021-08-31	0
2021-09-30	-0.4
2021-10-31	2.8
2021-11-30	4.9
2021-12-31	5.2
2022-01-31	5.2
2022-02-28	9
2022-03-31	7.3
2022-04-30	7.6
2022-05-31	7.7
2022-06-30	6.1
2022-07-31	6.8
2022-08-31	4.4
2022-09-30	12.1
2022-10-31	9.8
2022-11-30	0.9
2022-12-31	-2.5
2023-01-31	3.7
2023-02-28	-2.5
2023-03-31	-2.2
2023-04-30	-2.5
2023-05-31	-0.6
2023-06-30	-0.1
2023-07-31	-4.7
2023-08-31	-2.7
2023-09-30	-14.7
2023-10-31	-14.2
2023-11-30	-8.8
2023-12-31	-3.6