Quarter	Percent, Seasonally Adjusted
1998-01-01	13
1998-04-01	9
1998-07-01	-11
1998-10-01	-5
1999-01-01	1
1999-04-01	-1
1999-07-01	8
1999-10-01	11
2000-01-01	8
2000-04-01	7
2000-07-01	13
2000-10-01	14
2001-01-01	13
2001-04-01	13
2001-07-01	17
2001-10-01	16
2002-01-01	15
2002-04-01	15
2002-07-01	16
2002-10-01	15
2003-01-01	14
2003-04-01	15
2003-07-01	15
2003-10-01	17
2004-01-01	19
2004-04-01	18
2004-07-01	19
2004-10-01	20
2005-01-01	18
2005-04-01	18
2005-07-01	18
2005-10-01	19
2006-01-01	22
2006-04-01	21
2006-07-01	20
2006-10-01	20
2007-01-01	23
2007-04-01	24
2007-07-01	21
2007-10-01	14
2008-01-01	22
2008-04-01	22
2008-07-01	19
2008-10-01	13
2009-01-01	5
2009-04-01	6
2009-07-01	7
2009-10-01	6
2010-01-01	13
2010-04-01	14
2010-07-01	11
2010-10-01	9
2011-01-01	11
2011-04-01	11
2011-07-01	8
2011-10-01	4
2012-01-01	10
2012-04-01	11
2012-07-01	10
2012-10-01	11
2013-01-01	11
2013-04-01	14
2013-07-01	10
2013-10-01	8
2014-01-01	14
2014-04-01	12
2014-07-01	8
2014-10-01	7
2015-01-01	7
2015-04-01	8
2015-07-01	2
2015-10-01	4
2016-01-01	4
2016-04-01	10
2016-07-01	2
2016-10-01	4
2017-01-01	9
2017-04-01	10
2017-07-01	3
2017-10-01	6
2018-01-01	7
2018-04-01	9
2018-07-01	2