Month	Percent
1986-06-30	31.8
1986-07-31	34.3
1986-08-31	36.8
1986-09-30	39.1
1986-10-31	45.7
1986-11-30	52.1
1986-12-31	58.3
1987-01-31	56.6
1987-02-28	55
1987-03-31	53.6
1987-04-30	52.9
1987-05-31	52.3
1987-06-30	51.7
1987-07-31	47.8
1987-08-31	44.1
1987-09-30	40.6
1987-10-31	36.3
1987-11-30	32.4
1987-12-31	28.9
1988-01-31	31.9
1988-02-29	34.7
1988-03-31	37.2
1988-04-30	33.1
1988-05-31	29
1988-06-30	25
1988-07-31	28.6
1988-08-31	32.1
1988-09-30	35.6
1988-10-31	32.4
1988-11-30	29.4
1988-12-31	26.5
1989-01-31	22.9
1989-02-28	19.8
1989-03-31	16.9
1989-04-30	22.5
1989-05-31	28.4
1989-06-30	34.5
1989-07-31	37.4
1989-08-31	40.1
1989-09-30	42.6
1989-10-31	94
1989-11-30	144.9
1989-12-31	195.2
1990-01-31	184.8
1990-02-28	175.1
1990-03-31	166.1
1990-04-30	163.5
1990-05-31	161
1990-06-30	158.6
1990-07-31	145.9
1990-08-31	134.5
1990-09-30	124.3
1990-10-31	66.3
1990-11-30	32.9
1990-12-31	11.2
1991-01-31	11.9
1991-02-28	12.6
1991-03-31	13.3
1991-04-30	11.9
1991-05-31	10.5
1991-06-30	9.1
1991-07-31	8.8
1991-08-31	8.6
1991-09-30	8.4
1991-10-31	5.7
1991-11-30	3.1
1991-12-31	0.5
1992-01-31	-1.7
1992-02-29	-3.9
1992-03-31	-6
1992-04-30	-5.9
1992-05-31	-5.8
1992-06-30	-5.7
1992-07-31	-6.6
1992-08-31	-7.5
1992-09-30	-8.4
1992-10-31	-7.9
1992-11-30	-7.3
1992-12-31	-6.8
1993-01-31	1
1993-02-28	9
1993-03-31	17.2
1993-04-30	15.9
1993-05-31	14.5
1993-06-30	13.2
1993-07-31	15.5
1993-08-31	17.8
1993-09-30	20.1
1993-10-31	19.8
1993-11-30	19.4
1993-12-31	19.1
1994-01-31	13.1
1994-02-28	7.8
1994-03-31	3.1
1994-04-30	4.4
1994-05-31	5.7
1994-06-30	7
1994-07-31	6.1
1994-08-31	5.2
1994-09-30	4.3
1994-10-31	5.4
1994-11-30	6.6
1994-12-31	7.8
1995-01-31	7.1
1995-02-28	6.4
1995-03-31	5.7
1995-04-30	6.5
1995-05-31	7.3
1995-06-30	8.1
1995-07-31	8.1
1995-08-31	8.1
1995-09-30	8.1
1995-10-31	7.3
1995-11-30	6.4
1995-12-31	5.5
1996-01-31	5.7
1996-02-29	5.9
1996-03-31	6.1
1996-04-30	2.9
1996-05-31	-0.3
1996-06-30	-3.4
1996-07-31	-2.6
1996-08-31	-1.8
1996-09-30	-1
1996-10-31	1
1996-11-30	3
1996-12-31	5
1997-01-31	8.4
1997-02-28	11.7
1997-03-31	15
1997-04-30	19.7
1997-05-31	24.5
1997-06-30	29.5
1997-07-31	31.7
1997-08-31	33.9
1997-09-30	35.9
1997-10-31	36.2
1997-11-30	36.5
1997-12-31	36.7
1998-01-31	38.7
1998-02-28	40.5
1998-03-31	42.2
1998-04-30	40
1998-05-31	37.9
1998-06-30	35.9
1998-07-31	33.8
1998-08-31	31.7
1998-09-30	29.8
1998-10-31	27.7
1998-11-30	25.7
1998-12-31	23.7
1999-01-31	20.5
1999-02-28	17.7
1999-03-31	15.1
1999-04-30	7.2
1999-05-31	-0.6
1999-06-30	-8.4
1999-07-31	-7.7
1999-08-31	-7
1999-09-30	-6.4
1999-10-31	-5.5
1999-11-30	-4.7
1999-12-31	-3.8
2000-01-31	-1.5
2000-02-29	0.6
2000-03-31	2.7
2000-04-30	5.1
2000-05-31	7.8
2000-06-30	11
2000-07-31	12.3
2000-08-31	13.6
2000-09-30	14.7
2000-10-31	11.2
2000-11-30	7.7
2000-12-31	4.2
2001-01-31	3.4
2001-02-28	2.6
2001-03-31	1.9
2001-04-30	7.2
2001-05-31	13.1
2001-06-30	19.5
2001-07-31	14.3
2001-08-31	9.5
2001-09-30	4.9
2001-10-31	0.2
2001-11-30	-4.7
2001-12-31	-9.9
2002-01-31	-11
2002-02-28	-12.1
2002-03-31	-13.1
2002-04-30	-14.6
2002-05-31	-16.1
2002-06-30	-17.6
2002-07-31	-16.5
2002-08-31	-15.3
2002-09-30	-14.1
2002-10-31	-7.3
2002-11-30	0.5
2002-12-31	9.6
2003-01-31	7.7
2003-02-28	5.8
2003-03-31	4.1
2003-04-30	2.3
2003-05-31	0.4
2003-06-30	-1.5
2003-07-31	1.2
2003-08-31	3.9
2003-09-30	6.6
2003-10-31	3.9
2003-11-30	1.2
2003-12-31	-1.5
2004-01-31	0.3
2004-02-29	2.1
2004-03-31	3.8
2004-04-30	4.4
2004-05-31	5
2004-06-30	5.7
2004-07-31	5.9
2004-08-31	6.1
2004-09-30	6.2
2004-10-31	8.8
2004-11-30	11.5
2004-12-31	14.2
2005-01-31	11.9
2005-02-28	9.7
2005-03-31	7.6
2005-04-30	9.2
2005-05-31	10.9
2005-06-30	12.7
2005-07-31	8.8
2005-08-31	5.2
2005-09-30	1.8
2005-10-31	1.9
2005-11-30	1.9
2005-12-31	2
2006-01-31	0.6
2006-02-28	-0.9
2006-03-31	-2.3
2006-04-30	2.2
2006-05-31	6.7
2006-06-30	11.3
2006-07-31	13.6
2006-08-31	16
2006-09-30	18.3
2006-10-31	18
2006-11-30	17.7
2006-12-31	17.4
2007-01-31	20.1
2007-02-28	22.8
2007-03-31	25.6
2007-04-30	23.4
2007-05-31	21.4
2007-06-30	19.6
2007-07-31	18.7
2007-08-31	17.9
2007-09-30	17.1
2007-10-31	19.5
2007-11-30	21.9
2007-12-31	24.3
2008-01-31	20.7
2008-02-29	17.2
2008-03-31	13.9
2008-04-30	10.3
2008-05-31	6.9
2008-06-30	3.7
2008-07-31	1.8
2008-08-31	-0.1
2008-09-30	-1.9
2008-10-31	-3.4
2008-11-30	-4.9
2008-12-31	-6.3
2009-01-31	-8.8
2009-02-28	-11.5
2009-03-31	-14.2
2009-04-30	-9.6
2009-05-31	-4.9
2009-06-30	-0.2
2009-07-31	-5.2
2009-08-31	-10.2
2009-09-30	-15.4
2009-10-31	-17.8
2009-11-30	-20.1
2009-12-31	-22.4
2010-01-31	-26
2010-02-28	-29.9
2010-03-31	-34.1
2010-04-30	-31.2
2010-05-31	-28.6
2010-06-30	-26.1
2010-07-31	-24.3
2010-08-31	-22.2
2010-09-30	-19.8
2010-10-31	-18.4
2010-11-30	-16.9
2010-12-31	-15.3
2011-01-31	-5.1
2011-02-28	7.2
2011-03-31	22.2
2011-04-30	13.6
2011-05-31	6.3
2011-06-30	-0.1
2011-07-31	7.4
2011-08-31	15.5
2011-09-30	24.1
2011-10-31	15.3
2011-11-30	6.4
2011-12-31	-2.5
2012-01-31	3.5
2012-02-29	9.2
2012-03-31	14.6
2012-04-30	15.2
2012-05-31	15.7
2012-06-30	16.3
2012-07-31	11.8
2012-08-31	7.6
2012-09-30	3.8
2012-10-31	15.6
2012-11-30	29.5
2012-12-31	46
2013-01-31	42.3
2013-02-28	39.1
2013-03-31	36.4
2013-04-30	28.4
2013-05-31	20.7
2013-06-30	13.2
2013-07-31	16.7
2013-08-31	20.3
2013-09-30	23.8
2013-10-31	15
2013-11-30	6.7
2013-12-31	-1.1
2014-01-31	-7.3
2014-02-28	-12.8
2014-03-31	-17.7
2014-04-30	-14.3
2014-05-31	-10.4
2014-06-30	-6.3
2014-07-31	-6.9
2014-08-31	-7.5
2014-09-30	-8.1
2014-10-31	-7.2
2014-11-30	-6.3
2014-12-31	-5.2
2015-01-31	-0.9
2015-02-28	3.5
2015-03-31	7.9
2015-04-30	8
2015-05-31	8.2
2015-06-30	8.4
2015-07-31	7.7
2015-08-31	7
2015-09-30	6.4
2015-10-31	7.3
2015-11-30	8.2
2015-12-31	9.3
2016-01-31	4.6
2016-02-29	0.4
2016-03-31	-3.5
2016-04-30	-3.9
2016-05-31	-4.3
2016-06-30	-4.6
2016-07-31	-3
2016-08-31	-1.3
2016-09-30	0.2
2016-10-31	0.1
2016-11-30	-0.3
2016-12-31	-0.8
2017-01-31	0.1
2017-02-28	1.1
2017-03-31	2.1
2017-04-30	2.9
2017-05-31	3.8
2017-06-30	4.7
2017-07-31	-1.7
2017-08-31	-7.7
2017-09-30	-13.3
2017-10-31	-11.3
2017-11-30	-8.8
2017-12-31	-6.1
2018-01-31	-5.3
2018-02-28	-4.6
2018-03-31	-3.8
2018-04-30	1
2018-05-31	5.9
2018-06-30	10.7
2018-07-31	14.5
2018-08-31	18.7
2018-09-30	23
2018-10-31	19
2018-11-30	14.9
2018-12-31	10.7
2019-01-31	10.6
2019-02-28	10.4
2019-03-31	10.2
2019-04-30	7.2
2019-05-31	4.4
2019-06-30	1.9
2019-07-31	1.2
2019-08-31	0.5
2019-09-30	-0.1
2019-10-31	-0.4
2019-11-30	-0.7
2019-12-31	-1
2020-01-31	1.2
2020-02-29	3.3
2020-03-31	5.4
2020-04-30	2.6
2020-05-31	-0.1
2020-06-30	-2.7
2020-07-31	-4.8
2020-08-31	-6.8
2020-09-30	-8.9
2020-10-31	-2.1
2020-11-30	5.3
2020-12-31	13.2
2021-01-31	8
2021-02-28	3.1
2021-03-31	-1.4
2021-04-30	0.6
2021-05-31	2.6
2021-06-30	4.7
2021-07-31	7.6
2021-08-31	10.7
2021-09-30	14
2021-10-31	8.4
2021-11-30	3.2
2021-12-31	-1.7
2022-01-31	1.8
2022-02-28	5.3
2022-03-31	9
2022-04-30	8.3
2022-05-31	7.6
2022-06-30	6.9
2022-07-31	11.5
2022-08-31	16.1
2022-09-30	20.6
2022-10-31	17.3
2022-11-30	13.8
2022-12-31	10.2
2023-01-31	6.7
2023-02-28	3.4
2023-03-31	0.2
2023-04-30	-1.1
2023-05-31	-2.3
2023-06-30	-3.5