Quarter	Net Percent, Seasonally Adjusted
1974-04-01	-22
1974-07-01	-17
1974-10-01	-1
1975-01-01	12
1975-04-01	11
1975-07-01	16
1975-10-01	23
1976-01-01	24
1976-04-01	14
1976-07-01	18
1976-10-01	20
1977-01-01	15
1977-04-01	15
1977-07-01	14
1977-10-01	13
1978-01-01	6
1978-04-01	2
1978-07-01	1
1978-10-01	-3
1979-01-01	2
1979-04-01	0
1979-07-01	-2
1979-10-01	-5
1980-01-01	0
1980-04-01	0
1980-07-01	-2
1980-10-01	-1
1981-01-01	4
1981-04-01	1
1981-07-01	2
1981-10-01	6
1982-01-01	6
1982-04-01	10
1982-07-01	11
1982-10-01	16
1983-01-01	17
1983-04-01	17
1983-07-01	16
1983-10-01	9
1984-01-01	12
1984-04-01	12
1984-07-01	12
1984-10-01	10
1985-01-01	16
1985-04-01	11
1985-07-01	8
1985-10-01	11
1986-01-01	14
1986-04-01	12
1986-07-01	9
1986-10-01	10
1987-01-01	13
1987-04-01	9
1987-07-01	-1
1987-10-01	-10
1988-01-01	-6
1988-04-01	-13
1988-07-01	-22
1988-10-01	-30
1989-01-01	-28
1989-04-01	-33
1989-07-01	-47
1989-10-01	-56
1990-01-01	-55
1990-04-01	-55
1990-07-01	-64
1990-10-01	-68
1991-01-01	-64
1991-04-01	-60
1991-07-01	-59
1991-10-01	-53
1992-01-01	-42
1992-04-01	-34
1992-07-01	-28
1992-10-01	-20
1993-01-01	-12
1993-04-01	-11
1993-07-01	-8
1993-10-01	-11
1994-01-01	1
1994-04-01	2
1994-07-01	0
1994-10-01	0
1995-01-01	5
1995-04-01	7
1995-07-01	6
1995-10-01	3
1996-01-01	4
1996-04-01	3
1996-07-01	1
1996-10-01	1
1997-01-01	9
1997-04-01	10
1997-07-01	12
1997-10-01	22
1998-01-01	26
1998-04-01	27
1998-07-01	25
1998-10-01	27
1999-01-01	25
1999-04-01	28
1999-07-01	26
1999-10-01	26
2000-01-01	29
2000-04-01	28
2000-07-01	26
2000-10-01	25
2001-01-01	30
2001-04-01	30
2001-07-01	36
2001-10-01	36
2002-01-01	38
2002-04-01	33
2002-07-01	34
2002-10-01	36
2003-01-01	40
2003-04-01	34
2003-07-01	29
2003-10-01	20
2004-01-01	25
2004-04-01	21
2004-07-01	17
2004-10-01	16
2005-01-01	17
2005-04-01	13
2005-07-01	7
2005-10-01	6
2006-01-01	8
2006-04-01	3
2006-07-01	-3
2006-10-01	-3
2007-01-01	-1
2007-04-01	-1
2007-07-01	-5
2007-10-01	-4
2008-01-01	0
2008-04-01	2
2008-07-01	2
2008-10-01	9
2009-01-01	20
2009-04-01	15
2009-07-01	14
2009-10-01	17
2010-01-01	23
2010-04-01	17
2010-07-01	12
2010-10-01	11
2011-01-01	14
2011-04-01	10
2011-07-01	5
2011-10-01	4
2012-01-01	3
2012-04-01	-3
2012-07-01	-7
2012-10-01	-8
2013-01-01	-18
2013-04-01	-20
2013-07-01	-25
2013-10-01	-30
2014-01-01	-29
2014-04-01	-31
2014-07-01	-35
2014-10-01	-35
2015-01-01	-31
2015-04-01	-30
2015-07-01	-31
2015-10-01	-32
2016-01-01	-29
2016-04-01	-32
2016-07-01	-35
2016-10-01	-36
2017-01-01	-39
2017-04-01	-42
2017-07-01	-45
2017-10-01	-47
2018-01-01	-46
2018-04-01	-48
2018-07-01	-52