Quarter	Percent, Seasonally Adjusted
1974-04-01	-20
1974-07-01	-27
1974-10-01	-31
1975-01-01	-23
1975-04-01	-11
1975-07-01	-15
1975-10-01	-9
1976-01-01	-8
1976-04-01	5
1976-07-01	-7
1976-10-01	-8
1977-01-01	-9
1977-04-01	-12
1977-07-01	-11
1977-10-01	-11
1978-01-01	-2
1978-04-01	9
1978-07-01	9
1978-10-01	11
1979-01-01	18
1979-04-01	19
1979-07-01	17
1979-10-01	12
1980-01-01	4
1980-04-01	1
1980-07-01	1
1980-10-01	2
1981-01-01	4
1981-04-01	14
1981-07-01	10
1981-10-01	9
1982-01-01	4
1982-04-01	4
1982-07-01	-7
1982-10-01	-10
1983-01-01	-12
1983-04-01	-11
1983-07-01	-16
1983-10-01	-13
1984-01-01	-14
1984-04-01	-15
1984-07-01	-15
1984-10-01	-10
1985-01-01	-14
1985-04-01	-13
1985-07-01	-10
1985-10-01	-11
1986-01-01	-12
1986-04-01	-4
1986-07-01	-4
1986-10-01	-1
1987-01-01	7
1987-04-01	9
1987-07-01	16
1987-10-01	30
1988-01-01	39
1988-04-01	45
1988-07-01	46
1988-10-01	51
1989-01-01	57
1989-04-01	62
1989-07-01	60
1989-10-01	63
1990-01-01	65
1990-04-01	64
1990-07-01	63
1990-10-01	62
1991-01-01	59
1991-04-01	53
1991-07-01	47
1991-10-01	38
1992-01-01	31
1992-04-01	21
1992-07-01	13
1992-10-01	9
1993-01-01	2
1993-04-01	3
1993-07-01	-3
1993-10-01	4
1994-01-01	2
1994-04-01	11
1994-07-01	2
1994-10-01	3
1995-01-01	0
1995-04-01	-3
1995-07-01	-10
1995-10-01	-7
1996-01-01	1
1996-04-01	9
1996-07-01	6
1996-10-01	7
1997-01-01	-2
1997-04-01	-9
1997-07-01	-19
1997-10-01	-27
1998-01-01	-34
1998-04-01	-41
1998-07-01	-40
1998-10-01	-36
1999-01-01	-26
1999-04-01	-24
1999-07-01	-23
1999-10-01	-21
2000-01-01	-22
2000-04-01	-25
2000-07-01	-25
2000-10-01	-24
2001-01-01	-29
2001-04-01	-34
2001-07-01	-39
2001-10-01	-40
2002-01-01	-41
2002-04-01	-42
2002-07-01	-41
2002-10-01	-41
2003-01-01	-40
2003-04-01	-37
2003-07-01	-33
2003-10-01	-32
2004-01-01	-28
2004-04-01	-30
2004-07-01	-30
2004-10-01	-26
2005-01-01	-24
2005-04-01	-24
2005-07-01	-20
2005-10-01	-15
2006-01-01	-17
2006-04-01	-15
2006-07-01	-14
2006-10-01	-14
2007-01-01	-12
2007-04-01	-14
2007-07-01	-17
2007-10-01	-17
2008-01-01	-21
2008-04-01	-25
2008-07-01	-29
2008-10-01	-31
2009-01-01	-37
2009-04-01	-42
2009-07-01	-36
2009-10-01	-31
2010-01-01	-31
2010-04-01	-33
2010-07-01	-28
2010-10-01	-27
2011-01-01	-23
2011-04-01	-26
2011-07-01	-21
2011-10-01	-17
2012-01-01	-14
2012-04-01	-13
2012-07-01	-10
2012-10-01	-7
2013-01-01	-3
2013-04-01	3
2013-07-01	10
2013-10-01	20
2014-01-01	24
2014-04-01	18
2014-07-01	20
2014-10-01	19
2015-01-01	19
2015-04-01	16
2015-07-01	15
2015-10-01	17
2016-01-01	17
2016-04-01	13
2016-07-01	16
2016-10-01	16
2017-01-01	20
2017-04-01	22
2017-07-01	24
2017-10-01	23
2018-01-01	24
2018-04-01	23
2018-07-01	25