Quarter	Percent, Seasonally Adjusted
1966-01-01	9
1966-04-01	16
1966-07-01	6
1966-10-01	53
1967-01-01	44
1967-04-01	38
1967-07-01	43
1967-10-01	17
1968-01-01	8
1968-04-01	44
1968-07-01	45
1968-10-01	28
1969-01-01	37
1969-04-01	34
1969-07-01	32
1969-10-01	24
1970-01-01	27
1970-04-01	-36
1970-07-01	13
1970-10-01	16
1971-01-01	-37
1971-04-01	-19
1971-07-01	-26
1971-10-01	-41
1972-01-01	19
1972-04-01	44
1972-07-01	58
1972-10-01	58
1973-01-01	46
1973-04-01	32
1973-07-01	6
1973-10-01	-44
1974-01-01	-27
1974-04-01	-70
1974-07-01	-74
1974-10-01	-60
1975-01-01	14
1975-04-01	-2
1975-07-01	-17
1975-10-01	-7
1976-01-01	39
1976-04-01	44
1976-07-01	36
1976-10-01	0
1977-01-01	7
1977-04-01	23
1977-07-01	11
1977-10-01	24
1978-01-01	36
1978-04-01	25
1978-07-01	15
1978-10-01	30
1979-01-01	52
1979-04-01	15
1979-07-01	26
1979-10-01	18
1980-01-01	22
1980-04-01	11
1980-07-01	24
1980-10-01	30
1981-01-01	43
1981-04-01	30
1981-07-01	4
1981-10-01	-15
1982-01-01	-50
1982-04-01	-42
1982-07-01	-56
1982-10-01	-74
1983-01-01	-36
1983-04-01	-4
1983-07-01	31
1983-10-01	55
1984-01-01	46
1984-04-01	13
1984-07-01	25
1984-10-01	-13
1985-01-01	-18
1985-04-01	-15
1985-07-01	11
1985-10-01	-41
1986-01-01	-36
1986-04-01	-68
1986-07-01	-67
1986-10-01	-31
1987-01-01	-28
1987-04-01	-10
1987-07-01	41
1987-10-01	-31
1988-01-01	-1
1988-04-01	26
1988-07-01	25
1988-10-01	-2
1989-01-01	-32
1989-04-01	-51
1989-07-01	-45
1989-10-01	-73
1990-01-01	-66
1990-04-01	-17
1990-07-01	-54
1990-10-01	-65
1991-01-01	-52
1991-04-01	-17
1991-07-01	4
1991-10-01	3
1992-01-01	6
1992-04-01	24
1992-07-01	12
1992-10-01	15
1993-01-01	26
1993-04-01	21
1993-07-01	19
1993-10-01	48
1994-01-01	71
1994-04-01	61
1994-07-01	63
1994-10-01	40
1995-01-01	-12
1995-04-01	-25
1995-07-01	-1
1995-10-01	-37
1996-01-01	20
1996-04-01	0
1996-07-01	12
1996-10-01	13
1997-01-01	26
1997-04-01	31
1997-07-01	29
1997-10-01	7
1998-01-01	-19
1998-04-01	-51
1998-07-01	-42
1998-10-01	-17
1999-01-01	20
1999-04-01	17
1999-07-01	14
1999-10-01	21
2000-01-01	7
2000-04-01	-49
2000-07-01	-11
2000-10-01	-34
2001-01-01	-37
2001-04-01	0
2001-07-01	16
2001-10-01	-24
2002-01-01	25
2002-04-01	20
2002-07-01	-10
2002-10-01	-11
2003-01-01	-30
2003-04-01	2
2003-07-01	11
2003-10-01	13
2004-01-01	4
2004-04-01	9
2004-07-01	10
2004-10-01	9
2005-01-01	-5
2005-04-01	-5
2005-07-01	-5
2005-10-01	-14
2006-01-01	-1
2006-04-01	2
2006-07-01	-10
2006-10-01	-13
2007-01-01	-5
2007-04-01	0
2007-07-01	5
2007-10-01	22
2008-01-01	-12
2008-04-01	-16
2008-07-01	-22
2008-10-01	-61
2009-01-01	-61
2009-04-01	-4
2009-07-01	42
2009-10-01	24
2010-01-01	30
2010-04-01	13
2010-07-01	11
2010-10-01	11
2011-01-01	25
2011-04-01	-9
2011-07-01	-30
2011-10-01	-18
2012-01-01	-11
2012-04-01	-21
2012-07-01	11
2012-10-01	-1
2013-01-01	8
2013-04-01	3
2013-07-01	25
2013-10-01	35
2014-01-01	17
2014-04-01	-6
2014-07-01	15
2014-10-01	27
2015-01-01	8
2015-04-01	19
2015-07-01	19
2015-10-01	38
2016-01-01	15
2016-04-01	18
2016-07-01	25
2016-10-01	27
2017-01-01	37
2017-04-01	28
2017-07-01	35
2017-10-01	29
2018-01-01	38
2018-04-01	37