Month	Net Percent
1978-01-01	8
1978-02-01	11
1978-03-01	-3
1978-04-01	3
1978-05-01	-1
1978-06-01	-6
1978-07-01	0
1978-08-01	-9
1978-09-01	-4
1978-10-01	3
1978-11-01	-15
1978-12-01	-26
1979-01-01	-12
1979-02-01	-19
1979-03-01	-28
1979-04-01	-26
1979-05-01	-26
1979-06-01	-30
1979-07-01	-32
1979-08-01	-26
1979-09-01	-20
1979-10-01	-20
1979-11-01	-21
1979-12-01	-19
1980-01-01	-18
1980-02-01	-6
1980-03-01	-28
1980-04-01	-32
1980-05-01	-18
1980-06-01	-6
1980-07-01	3
1980-08-01	5
1980-09-01	15
1980-10-01	15
1980-11-01	26
1980-12-01	9
1981-01-01	23
1981-02-01	18
1981-03-01	17
1981-04-01	15
1981-05-01	17
1981-06-01	17
1981-07-01	14
1981-08-01	21
1981-09-01	12
1981-10-01	6
1981-11-01	1
1981-12-01	2
1982-01-01	14
1982-02-01	6
1982-03-01	2
1982-04-01	4
1982-05-01	19
1982-06-01	11
1982-07-01	8
1982-08-01	8
1982-09-01	17
1982-10-01	20
1982-11-01	19
1982-12-01	19
1983-01-01	21
1983-02-01	31
1983-03-01	42
1983-04-01	46
1983-05-01	49
1983-06-01	42
1983-07-01	40
1983-08-01	37
1983-09-01	36
1983-10-01	35
1983-11-01	37
1983-12-01	36
1984-01-01	37
1984-02-01	27
1984-03-01	27
1984-04-01	19
1984-05-01	17
1984-06-01	15
1984-07-01	20
1984-08-01	19
1984-09-01	18
1984-10-01	16
1984-11-01	20
1984-12-01	17
1985-01-01	14
1985-02-01	18
1985-03-01	14
1985-04-01	14
1985-05-01	10
1985-06-01	17
1985-07-01	12
1985-08-01	13
1985-09-01	6
1985-10-01	3
1985-11-01	3
1985-12-01	13
1986-01-01	8
1986-02-01	15
1986-03-01	13
1986-04-01	14
1986-05-01	12
1986-06-01	11
1986-07-01	10
1986-08-01	9
1986-09-01	5
1986-10-01	3
1986-11-01	1
1986-12-01	-2
1987-01-01	7
1987-02-01	-1
1987-03-01	8
1987-04-01	3
1987-05-01	2
1987-06-01	4
1987-07-01	12
1987-08-01	11
1987-09-01	4
1987-10-01	3
1987-11-01	0
1987-12-01	-1
1988-01-01	2
1988-02-01	6
1988-03-01	4
1988-04-01	3
1988-05-01	10
1988-06-01	5
1988-07-01	5
1988-08-01	8
1988-09-01	13
1988-10-01	9
1988-11-01	1
1988-12-01	0
1989-01-01	6
1989-02-01	9
1989-03-01	4
1989-04-01	-1
1989-05-01	-3
1989-06-01	7
1989-07-01	6
1989-08-01	-1
1989-09-01	5
1989-10-01	7
1989-11-01	0
1989-12-01	6
1990-01-01	5
1990-02-01	-4
1990-03-01	4
1990-04-01	7
1990-05-01	-2
1990-06-01	0
1990-07-01	-4
1990-08-01	-20
1990-09-01	-27
1990-10-01	-30
1990-11-01	-27
1990-12-01	-18
1991-01-01	-6
1991-02-01	-2
1991-03-01	31
1991-04-01	20
1991-05-01	19
1991-06-01	16
1991-07-01	18
1991-08-01	19
1991-09-01	16
1991-10-01	8
1991-11-01	-2
1991-12-01	-6
1992-01-01	3
1992-02-01	5
1992-03-01	15
1992-04-01	15
1992-05-01	22
1992-06-01	12
1992-07-01	13
1992-08-01	14
1992-09-01	7
1992-10-01	14
1992-11-01	16
1992-12-01	36
1993-01-01	27
1993-02-01	26
1993-03-01	15
1993-04-01	14
1993-05-01	4
1993-06-01	3
1993-07-01	2
1993-08-01	-6
1993-09-01	-2
1993-10-01	-1
1993-11-01	-1
1993-12-01	11
1994-01-01	21
1994-02-01	18
1994-03-01	11
1994-04-01	12
1994-05-01	10
1994-06-01	6
1994-07-01	6
1994-08-01	5
1994-09-01	9
1994-10-01	12
1994-11-01	9
1994-12-01	15
1995-01-01	17
1995-02-01	15
1995-03-01	4
1995-04-01	6
1995-05-01	5
1995-06-01	-1
1995-07-01	6
1995-08-01	10
1995-09-01	9
1995-10-01	5
1995-11-01	0
1995-12-01	8
1996-01-01	-4
1996-02-01	4
1996-03-01	10
1996-04-01	3
1996-05-01	6
1996-06-01	2
1996-07-01	8
1996-08-01	9
1996-09-01	7
1996-10-01	12
1996-11-01	13
1996-12-01	12
1997-01-01	11
1997-02-01	18
1997-03-01	7
1997-04-01	4
1997-05-01	10
1997-06-01	14
1997-07-01	13
1997-08-01	19
1997-09-01	22
1997-10-01	15
1997-11-01	18
1997-12-01	10
1998-01-01	13
1998-02-01	17
1998-03-01	20
1998-04-01	21
1998-05-01	14
1998-06-01	7
1998-07-01	13
1998-08-01	11
1998-09-01	5
1998-10-01	0
1998-11-01	7
1998-12-01	3
1999-01-01	7
1999-02-01	15
1999-03-01	1
1999-04-01	9
1999-05-01	9
1999-06-01	12
1999-07-01	7
1999-08-01	5
1999-09-01	12
1999-10-01	8
1999-11-01	10
1999-12-01	12
2000-01-01	18
2000-02-01	17
2000-03-01	16
2000-04-01	13
2000-05-01	15
2000-06-01	12
2000-07-01	12
2000-08-01	14
2000-09-01	12
2000-10-01	12
2000-11-01	14
2000-12-01	0
2001-01-01	-5
2001-02-01	7
2001-03-01	5
2001-04-01	8
2001-05-01	3
2001-06-01	10
2001-07-01	10
2001-08-01	9
2001-09-01	5
2001-10-01	20
2001-11-01	22
2001-12-01	29
2002-01-01	37
2002-02-01	39
2002-03-01	43
2002-04-01	34
2002-05-01	31
2002-06-01	26
2002-07-01	15
2002-08-01	29
2002-09-01	20
2002-10-01	9
2002-11-01	19
2002-12-01	17
2003-01-01	0
2003-02-01	6
2003-03-01	4
2003-04-01	18
2003-05-01	34
2003-06-01	26
2003-07-01	20
2003-08-01	22
2003-09-01	17
2003-10-01	20
2003-11-01	26
2003-12-01	27
2004-01-01	35
2004-02-01	26
2004-03-01	19
2004-04-01	21
2004-05-01	17
2004-06-01	20
2004-07-01	26
2004-08-01	26
2004-09-01	20
2004-10-01	19
2004-11-01	23
2004-12-01	16
2005-01-01	14
2005-02-01	11
2005-03-01	6
2005-04-01	-1
2005-05-01	0
2005-06-01	0
2005-07-01	2
2005-08-01	-4
2005-09-01	-16
2005-10-01	-8
2005-11-01	-6
2005-12-01	2
2006-01-01	4
2006-02-01	-1
2006-03-01	-8
2006-04-01	-13
2006-05-01	-16
2006-06-01	-14
2006-07-01	-13
2006-08-01	-17
2006-09-01	-4
2006-10-01	2
2006-11-01	2
2006-12-01	1
2007-01-01	6
2007-02-01	-2
2007-03-01	-2
2007-04-01	-6
2007-05-01	-10
2007-06-01	-5
2007-07-01	-2
2007-08-01	-10
2007-09-01	-10
2007-10-01	-10
2007-11-01	-16
2007-12-01	-15
2008-01-01	-3
2008-02-01	-7
2008-03-01	-13
2008-04-01	-16
2008-05-01	-25
2008-06-01	-26
2008-07-01	-18
2008-08-01	-8
2008-09-01	6
2008-10-01	-1
2008-11-01	-3
2008-12-01	3
2009-01-01	6
2009-02-01	-5
2009-03-01	6
2009-04-01	16
2009-05-01	22
2009-06-01	17
2009-07-01	12
2009-08-01	19
2009-09-01	27
2009-10-01	18
2009-11-01	14
2009-12-01	17
2010-01-01	23
2010-02-01	20
2010-03-01	19
2010-04-01	16
2010-05-01	9
2010-06-01	16
2010-07-01	2
2010-08-01	7
2010-09-01	1
2010-10-01	10
2010-11-01	16
2010-12-01	17
2011-01-01	19
2011-02-01	22
2011-03-01	-4
2011-04-01	2
2011-05-01	12
2011-06-01	10
2011-07-01	-1
2011-08-01	-14
2011-09-01	-12
2011-10-01	-8
2011-11-01	-2
2011-12-01	4
2012-01-01	16
2012-02-01	15
2012-03-01	17
2012-04-01	15
2012-05-01	20
2012-06-01	12
2012-07-01	14
2012-08-01	10
2012-09-01	9
2012-10-01	14
2012-11-01	19
2012-12-01	3
2013-01-01	4
2013-02-01	7
2013-03-01	9
2013-04-01	4
2013-05-01	14
2013-06-01	12
2013-07-01	8
2013-08-01	5