Quarter	Percent, Seasonally Adjusted
1974-04-01	56
1974-07-01	54
1974-10-01	47
1975-01-01	15
1975-04-01	22
1975-07-01	15
1975-10-01	34
1976-01-01	16
1976-04-01	21
1976-07-01	-16
1976-10-01	-9
1977-01-01	-25
1977-04-01	-38
1977-07-01	-14
1977-10-01	-10
1978-01-01	4
1978-04-01	17
1978-07-01	25
1978-10-01	27
1979-01-01	54
1979-04-01	2
1979-07-01	43
1979-10-01	70
1980-01-01	68
1980-04-01	77
1980-07-01	73
1980-10-01	70
1981-01-01	70
1981-04-01	63
1981-07-01	50
1981-10-01	44
1982-01-01	26
1982-04-01	-8
1982-07-01	-27
1982-10-01	-34
1983-01-01	-34
1983-04-01	-18
1983-07-01	-2
1983-10-01	17
1984-01-01	30
1984-04-01	31
1984-07-01	11
1984-10-01	-10
1985-01-01	-26
1985-04-01	-33
1985-07-01	-41
1985-10-01	-16
1986-01-01	-3
1986-04-01	13
1986-07-01	14
1986-10-01	29
1987-01-01	39
1987-04-01	34
1987-07-01	35
1987-10-01	44
1988-01-01	53
1988-04-01	64
1988-07-01	47
1988-10-01	41
1989-01-01	40
1989-04-01	28
1989-07-01	25
1989-10-01	27
1990-01-01	12
1990-04-01	9
1990-07-01	-20
1990-10-01	-15
1991-01-01	-3
1991-04-01	-13
1991-07-01	-17
1991-10-01	-27
1992-01-01	-6
1992-04-01	-15
1992-07-01	-36
1992-10-01	-23
1993-01-01	-10
1993-04-01	-8
1993-07-01	-3
1993-10-01	15
1994-01-01	5
1994-04-01	27
1994-07-01	39
1994-10-01	60
1995-01-01	55
1995-04-01	50
1995-07-01	46
1995-10-01	30
1996-01-01	8
1996-04-01	6
1996-07-01	10
1996-10-01	28
1997-01-01	31
1997-04-01	12
1997-07-01	12
1997-10-01	10
1998-01-01	-7
1998-04-01	-24
1998-07-01	-24
1998-10-01	-22
1999-01-01	-32
1999-04-01	-16
1999-07-01	10
1999-10-01	18
2000-01-01	11
2000-04-01	5
2000-07-01	18
2000-10-01	14
2001-01-01	21
2001-04-01	12
2001-07-01	12
2001-10-01	28
2002-01-01	51
2002-04-01	41
2002-07-01	52
2002-10-01	50
2003-01-01	21
2003-04-01	-2
2003-07-01	-9
2003-10-01	-6
2004-01-01	0
2004-04-01	8
2004-07-01	25
2004-10-01	48
2005-01-01	-1
2005-04-01	12
2005-07-01	36
2005-10-01	30
2006-01-01	15
2006-04-01	29
2006-07-01	17
2006-10-01	49
2007-01-01	27
2007-04-01	39
2007-07-01	25
2007-10-01	38
2008-01-01	-23
2008-04-01	-12
2008-07-01	-18
2008-10-01	-39
2009-01-01	-63
2009-04-01	-62
2009-07-01	-47
2009-10-01	-31
2010-01-01	-20
2010-04-01	-15
2010-07-01	-7
2010-10-01	6
2011-01-01	18
2011-04-01	16
2011-07-01	0
2011-10-01	23
2012-01-01	17
2012-04-01	18
2012-07-01	10
2012-10-01	18
2013-01-01	17
2013-04-01	12
2013-07-01	21
2013-10-01	23
2014-01-01	15
2014-04-01	-38
2014-07-01	-4
2014-10-01	11
2015-01-01	-4
2015-04-01	-12
2015-07-01	-1
2015-10-01	-5
2016-01-01	-7
2016-04-01	-22
2016-07-01	-2
2016-10-01	3
2017-01-01	-3
2017-04-01	-18
2017-07-01	-8
2017-10-01	15
2018-01-01	6
2018-04-01	-23
2018-07-01	-20