Quarter	Net Percent, Seasonally Adjusted
1966-01-01	6
1966-04-01	10
1966-07-01	7
1966-10-01	12
1967-01-01	16
1967-04-01	14
1967-07-01	18
1967-10-01	5
1968-01-01	7
1968-04-01	15
1968-07-01	22
1968-10-01	5
1969-01-01	19
1969-04-01	18
1969-07-01	26
1969-10-01	12
1970-01-01	21
1970-04-01	4
1970-07-01	20
1970-10-01	15
1971-01-01	-2
1971-04-01	0
1971-07-01	-1
1971-10-01	-24
1972-01-01	-13
1972-04-01	1
1972-07-01	8
1972-10-01	15
1973-01-01	15
1973-04-01	25
1973-07-01	20
1973-10-01	7
1974-01-01	11
1974-04-01	-4
1974-07-01	-34
1974-10-01	-47
1975-01-01	-13
1975-04-01	-16
1975-07-01	-12
1975-10-01	-18
1976-01-01	2
1976-04-01	0
1976-07-01	2
1976-10-01	-14
1977-01-01	-6
1977-04-01	-9
1977-07-01	-10
1977-10-01	-3
1978-01-01	1
1978-04-01	-4
1978-07-01	1
1978-10-01	4
1979-01-01	14
1979-04-01	3
1979-07-01	7
1979-10-01	3
1980-01-01	5
1980-04-01	-4
1980-07-01	12
1980-10-01	6
1981-01-01	13
1981-04-01	10
1981-07-01	4
1981-10-01	-9
1982-01-01	-22
1982-04-01	-36
1982-07-01	-44
1982-10-01	-52
1983-01-01	-45
1983-04-01	-20
1983-07-01	-10
1983-10-01	-2
1984-01-01	5
1984-04-01	-6
1984-07-01	-2
1984-10-01	-13
1985-01-01	-5
1985-04-01	-3
1985-07-01	0
1985-10-01	-18
1986-01-01	-6
1986-04-01	-28
1986-07-01	-24
1986-10-01	-14
1987-01-01	-11
1987-04-01	-6
1987-07-01	9
1987-10-01	-12
1988-01-01	7
1988-04-01	8
1988-07-01	7
1988-10-01	7
1989-01-01	1
1989-04-01	-12
1989-07-01	-10
1989-10-01	-21
1990-01-01	-27
1990-04-01	-30
1990-07-01	-41
1990-10-01	-52
1991-01-01	-46
1991-04-01	-30
1991-07-01	-31
1991-10-01	-32
1992-01-01	-31
1992-04-01	-37
1992-07-01	-23
1992-10-01	-15
1993-01-01	-14
1993-04-01	-12
1993-07-01	-16
1993-10-01	-9
1994-01-01	11
1994-04-01	10
1994-07-01	16
1994-10-01	0
1995-01-01	-2
1995-04-01	-15
1995-07-01	-11
1995-10-01	-26
1996-01-01	-12
1996-04-01	-22
1996-07-01	-19
1996-10-01	-21
1997-01-01	-17
1997-04-01	-24
1997-07-01	-10
1997-10-01	-20
1998-01-01	-12
1998-04-01	-26
1998-07-01	-21
1998-10-01	-23
1999-01-01	-14
1999-04-01	4
1999-07-01	6
1999-10-01	-11
2000-01-01	-11
2000-04-01	-11
2000-07-01	-11
2000-10-01	-27
2001-01-01	-22
2001-04-01	-11
2001-07-01	-8
2001-10-01	-2
2002-01-01	11
2002-04-01	3
2002-07-01	0
2002-10-01	-3
2003-01-01	6
2003-04-01	2
2003-07-01	6
2003-10-01	-6
2004-01-01	-2
2004-04-01	11
2004-07-01	10
2004-10-01	11
2005-01-01	5
2005-04-01	-3
2005-07-01	-2
2005-10-01	-5
2006-01-01	0
2006-04-01	-13
2006-07-01	8
2006-10-01	3
2007-01-01	7
2007-04-01	5
2007-07-01	11
2007-10-01	5
2008-01-01	-1
2008-04-01	6
2008-07-01	-2
2008-10-01	-22
2009-01-01	-33
2009-04-01	-15
2009-07-01	0
2009-10-01	-1
2010-01-01	8
2010-04-01	7
2010-07-01	-2
2010-10-01	0
2011-01-01	11
2011-04-01	-3
2011-07-01	-12
2011-10-01	-14
2012-01-01	0
2012-04-01	1
2012-07-01	-5
2012-10-01	-11
2013-01-01	-7
2013-04-01	-13
2013-07-01	-9
2013-10-01	-2
2014-01-01	-6
2014-04-01	-12
2014-07-01	-4
2014-10-01	-6
2015-01-01	-4
2015-04-01	-6
2015-07-01	4
2015-10-01	-2
2016-01-01	7
2016-04-01	2
2016-07-01	1
2016-10-01	-4
2017-01-01	7
2017-04-01	17
2017-07-01	11
2017-10-01	15
2018-01-01	-6
2018-04-01	7