Month	Percent
1983-06-30	24.9
1983-07-31	21.2
1983-08-31	17.8
1983-09-30	14.6
1983-10-31	43.1
1983-11-30	67.9
1983-12-31	89.8
1984-01-31	86.8
1984-02-29	83.7
1984-03-31	80.6
1984-04-30	87.8
1984-05-31	95.4
1984-06-30	103.3
1984-07-31	108.9
1984-08-31	114.3
1984-09-30	119.6
1984-10-31	69.7
1984-11-30	40.1
1984-12-31	20.4
1985-01-31	21.5
1985-02-28	22.7
1985-03-31	23.9
1985-04-30	22.1
1985-05-31	20.4
1985-06-30	18.7
1985-07-31	13.8
1985-08-31	9.3
1985-09-30	5.1
1985-10-31	6.1
1985-11-30	7
1985-12-31	7.8
1986-01-31	6.8
1986-02-28	5.8
1986-03-31	4.8
1986-04-30	6.7
1986-05-31	8.7
1986-06-30	10.7
1986-07-31	17.1
1986-08-31	23.5
1986-09-30	30
1986-10-31	27.8
1986-11-30	25.7
1986-12-31	23.9
1987-01-31	23.7
1987-02-28	23.5
1987-03-31	23.3
1987-04-30	22.9
1987-05-31	22.4
1987-06-30	22
1987-07-31	17.7
1987-08-31	13.9
1987-09-30	10.5
1987-10-31	4.9
1987-11-30	-0.3
1987-12-31	-5.3
1988-01-31	-4.7
1988-02-29	-4
1988-03-31	-3.3
1988-04-30	0.5
1988-05-31	4.2
1988-06-30	7.8
1988-07-31	6.2
1988-08-31	4.7
1988-09-30	3.3
1988-10-31	4.4
1988-11-30	5.6
1988-12-31	6.8
1989-01-31	11.4
1989-02-28	16.2
1989-03-31	21.2
1989-04-30	23.8
1989-05-31	26.2
1989-06-30	28.4
1989-07-31	26.6
1989-08-31	24.9
1989-09-30	23.1
1989-10-31	38.5
1989-11-30	54.4
1989-12-31	70.6
1990-01-31	71.2
1990-02-28	71.6
1990-03-31	72.1
1990-04-30	59
1990-05-31	47.7
1990-06-30	37.8
1990-07-31	41.7
1990-08-31	45.7
1990-09-30	49.7
1990-10-31	34.8
1990-11-30	22.5
1990-12-31	12.3
1991-01-31	12.9
1991-02-28	13.5
1991-03-31	14.1
1991-04-30	20.4
1991-05-31	26.8
1991-06-30	33.2
1991-07-31	27.2
1991-08-31	21.3
1991-09-30	15.7
1991-10-31	13.3
1991-11-30	10.8
1991-12-31	8.4
1992-01-31	7.1
1992-02-29	6
1992-03-31	4.9
1992-04-30	-3.3
1992-05-31	-10.7
1992-06-30	-17.5
1992-07-31	-11.5
1992-08-31	-5.2
1992-09-30	1.5
1992-10-31	5.4
1992-11-30	9.4
1992-12-31	13.7
1993-01-31	13.7
1993-02-28	13.7
1993-03-31	13.5
1993-04-30	18.8
1993-05-31	24.4
1993-06-30	30.5
1993-07-31	29.2
1993-08-31	28.1
1993-09-30	27.1
1993-10-31	25.6
1993-11-30	24.2
1993-12-31	22.9
1994-01-31	24.4
1994-02-28	25.8
1994-03-31	27.4
1994-04-30	21
1994-05-31	14.9
1994-06-30	8.8
1994-07-31	6.6
1994-08-31	4.6
1994-09-30	2.6
1994-10-31	6
1994-11-30	9.4
1994-12-31	12.8
1995-01-31	9.5
1995-02-28	6.4
1995-03-31	3.5
1995-04-30	8.2
1995-05-31	13.4
1995-06-30	19
1995-07-31	17.9
1995-08-31	16.9
1995-09-30	15.9
1995-10-31	15.1
1995-11-30	14.4
1995-12-31	13.8
1996-01-31	16
1996-02-29	18.3
1996-03-31	20.6
1996-04-30	19.6
1996-05-31	18.6
1996-06-30	17.7
1996-07-31	18.5
1996-08-31	19.4
1996-09-30	20.2
1996-10-31	13.2
1996-11-30	6.5
1996-12-31	0.2
1997-01-31	6.5
1997-02-28	12.4
1997-03-31	18.2
1997-04-30	17.8
1997-05-31	17.4
1997-06-30	17
1997-07-31	19
1997-08-31	21
1997-09-30	22.9
1997-10-31	27.1
1997-11-30	31.6
1997-12-31	36.4
1998-01-31	26.5
1998-02-28	18.1
1998-03-31	10.9
1998-04-30	11.8
1998-05-31	12.8
1998-06-30	13.8
1998-07-31	11.9
1998-08-31	10.2
1998-09-30	8.5
1998-10-31	5
1998-11-30	1.5
1998-12-31	-1.9
1999-01-31	2.1
1999-02-28	6
1999-03-31	9.9
1999-04-30	8.8
1999-05-31	7.7
1999-06-30	6.6
1999-07-31	9.9
1999-08-31	13.2
1999-09-30	16.3
1999-10-31	18.9
1999-11-30	21.5
1999-12-31	24.4
2000-01-31	21.2
2000-02-29	18.4
2000-03-31	15.8
2000-04-30	18.2
2000-05-31	20.6
2000-06-30	23.1
2000-07-31	22.1
2000-08-31	21.2
2000-09-30	20.3
2000-10-31	22.1
2000-11-30	23.8
2000-12-31	25.6
2001-01-31	33.2
2001-02-28	40.4
2001-03-31	47.4
2001-04-30	43.1
2001-05-31	38.9
2001-06-30	34.8
2001-07-31	30.8
2001-08-31	27
2001-09-30	23.5
2001-10-31	30.6
2001-11-30	37.7
2001-12-31	44.6
2002-01-31	34.9
2002-02-28	26.6
2002-03-31	19.3
2002-04-30	21.4
2002-05-31	23.4
2002-06-30	25.6
2002-07-31	25.2
2002-08-31	24.8
2002-09-30	24.4
2002-10-31	17.7
2002-11-30	11.9
2002-12-31	6.6
2003-01-31	17.6
2003-02-28	28.4
2003-03-31	38.9
2003-04-30	35.6
2003-05-31	32.2
2003-06-30	28.9
2003-07-31	35
2003-08-31	41.1
2003-09-30	47.2
2003-10-31	46.8
2003-11-30	46.5
2003-12-31	46.1
2004-01-31	34.7
2004-02-29	25.3
2004-03-31	17.6
2004-04-30	19.9
2004-05-31	22.2
2004-06-30	24.6
2004-07-31	26
2004-08-31	27.3
2004-09-30	28.4
2004-10-31	28.4
2004-11-30	28.4
2004-12-31	28.5
2005-01-31	32.1
2005-02-28	35.5
2005-03-31	38.7
2005-04-30	37.7
2005-05-31	36.6
2005-06-30	35.6
2005-07-31	31
2005-08-31	26.9
2005-09-30	23.3
2005-10-31	22.7
2005-11-30	22.2
2005-12-31	21.7
2006-01-31	19.5
2006-02-28	17.6
2006-03-31	15.9
2006-04-30	24.2
2006-05-31	32.7
2006-06-30	41.3
2006-07-31	38.8
2006-08-31	36.3
2006-09-30	34
2006-10-31	32.4
2006-11-30	30.8
2006-12-31	29.2
2007-01-31	27.1
2007-02-28	25.1
2007-03-31	23.3
2007-04-30	17.9
2007-05-31	13
2007-06-30	8.6
2007-07-31	8.2
2007-08-31	7.7
2007-09-30	7.2
2007-10-31	9.9
2007-11-30	12.6
2007-12-31	15.4
2008-01-31	20.4
2008-02-29	25.3
2008-03-31	29.9
2008-04-30	25.8
2008-05-31	21.8
2008-06-30	17.8
2008-07-31	15.4
2008-08-31	13
2008-09-30	10.6
2008-10-31	11
2008-11-30	11.3
2008-12-31	11.6
2009-01-31	0.4
2009-02-28	-9.6
2009-03-31	-18.4
2009-04-30	-19.6
2009-05-31	-20.9
2009-06-30	-22.2
2009-07-31	-19.7
2009-08-31	-17.1
2009-09-30	-14.4
2009-10-31	-17.9
2009-11-30	-21.3
2009-12-31	-24.6
2010-01-31	-18.2
2010-02-28	-11.2
2010-03-31	-3.6
2010-04-30	0
2010-05-31	3.9
2010-06-30	8
2010-07-31	10.1
2010-08-31	12.2
2010-09-30	14.2
2010-10-31	15.8
2010-11-30	17.4
2010-12-31	19.1
2011-01-31	17.7
2011-02-28	16.5
2011-03-31	15.4
2011-04-30	15.5
2011-05-31	15.6
2011-06-30	15.7
2011-07-31	14.9
2011-08-31	14
2011-09-30	13.3
2011-10-31	13.8
2011-11-30	14.3
2011-12-31	14.9
2012-01-31	9.3
2012-02-29	4
2012-03-31	-1
2012-04-30	0.7
2012-05-31	2.4
2012-06-30	4.1
2012-07-31	0.8
2012-08-31	-2.3
2012-09-30	-5.3
2012-10-31	-5.2
2012-11-30	-5.1
2012-12-31	-5
2013-01-31	-1.4
2013-02-28	2.3
2013-03-31	6.2
2013-04-30	6.7
2013-05-31	7.2
2013-06-30	7.7
2013-07-31	8.4
2013-08-31	9.2
2013-09-30	10
2013-10-31	9.2
2013-11-30	8.4
2013-12-31	7.5
2014-01-31	7.2
2014-02-28	6.9
2014-03-31	6.7
2014-04-30	3.2
2014-05-31	0
2014-06-30	-3.2
2014-07-31	-0.4
2014-08-31	2.4
2014-09-30	5.2
2014-10-31	2.9
2014-11-30	0.5
2014-12-31	-1.9
2015-01-31	-1.4
2015-02-28	-1
2015-03-31	-0.6
2015-04-30	-4.1
2015-05-31	-7.6
2015-06-30	-11.2
2015-07-31	-11.6
2015-08-31	-12
2015-09-30	-12.4
2015-10-31	-11.6
2015-11-30	-10.8
2015-12-31	-9.8
2016-01-31	-7.2
2016-02-29	-4.6
2016-03-31	-2.1
2016-04-30	7.4
2016-05-31	17.9
2016-06-30	29.4
2016-07-31	26.5
2016-08-31	23.7
2016-09-30	21
2016-10-31	22.9
2016-11-30	24.9
2016-12-31	27.1
2017-01-31	24.9
2017-02-28	22.9
2017-03-31	21.1
2017-04-30	14.3
2017-05-31	8.1
2017-06-30	2.5
2017-07-31	0.3
2017-08-31	-1.8
2017-09-30	-4
2017-10-31	-3
2017-11-30	-2.1
2017-12-31	-1.1
2018-01-31	0.6
2018-02-28	2.3
2018-03-31	3.8
2018-04-30	7.3
2018-05-31	10.8
2018-06-30	14.3
2018-07-31	16.1
2018-08-31	17.9
2018-09-30	19.8
2018-10-31	23.9
2018-11-30	27.9
2018-12-31	32
2019-01-31	24.4
2019-02-28	17.4
2019-03-31	11
2019-04-30	8.3
2019-05-31	5.8
2019-06-30	3.4
2019-07-31	6
2019-08-31	8.5
2019-09-30	11.1
2019-10-31	3.7
2019-11-30	-3.2
2019-12-31	-9.8
2020-01-31	-1.1
2020-02-29	7.7
2020-03-31	16.9
2020-04-30	17
2020-05-31	17.1
2020-06-30	17.2
2020-07-31	16.1
2020-08-31	15.1
2020-09-30	14.1
2020-10-31	17.8
2020-11-30	21.9
2020-12-31	26.2
2021-01-31	14.4
2021-02-28	4.3
2021-03-31	-4.6
2021-04-30	-4.8
2021-05-31	-5
2021-06-30	-5.3
2021-07-31	-4.1
2021-08-31	-2.9
2021-09-30	-1.7
2021-10-31	1.3
2021-11-30	4.4
2021-12-31	7.5
2022-01-31	15.7
2022-02-28	24.3
2022-03-31	33.3
2022-04-30	40.3
2022-05-31	47.2
2022-06-30	54.2
2022-07-31	60
2022-08-31	65.5
2022-09-30	70.9
2022-10-31	64
2022-11-30	57.5
2022-12-31	51.2
2023-01-31	41.4
2023-02-28	32.4
2023-03-31	24.4
2023-04-30	16.2
2023-05-31	8.9
2023-06-30	2.2