Quarter	Net Percent, Seasonally Adjusted
1987-01-01	33.7
1987-04-01	35.3
1987-07-01	26.0
1987-10-01	24.2
1988-01-01	17.8
1988-04-01	18.0
1988-07-01	14.6
1988-10-01	17.3
1989-01-01	21.8
1989-04-01	20.3
1989-07-01	25.7
1989-10-01	20.9
1990-01-01	21.6
1990-04-01	13.3
1990-07-01	12.3
1990-10-01	10.4
1991-01-01	3.7
1991-04-01	-1.7
1991-07-01	-0.2
1991-10-01	-2.1
1992-01-01	3.6
1992-04-01	-5.2
1992-07-01	-10.8
1992-10-01	-17.7
1993-01-01	-18.5
1993-04-01	-19.7
1993-07-01	-16.2
1993-10-01	0.7
1994-01-01	11.0
1994-04-01	21.9
1994-07-01	21.2
1994-10-01	28.5
1995-01-01	17.0
1995-04-01	17.0
1995-07-01	17.1
1995-10-01	7.0
1996-01-01	-10.6
1996-04-01	-7.5
1996-07-01	-1.1
1996-10-01	-5.7
1997-01-01	6.0
1997-04-01	12.8
1997-07-01	15.4
1997-10-01	13.5
1998-01-01	15.8
1998-04-01	20.2
1998-07-01	9.2
1998-10-01	6.8
1999-01-01	4.5
1999-04-01	-3.8
1999-07-01	1.7
1999-10-01	6.7
2000-01-01	10.3
2000-04-01	15.6
2000-07-01	10.8
2000-10-01	8.5
2001-01-01	8.6
2001-04-01	4.2
2001-07-01	-7.2
2001-10-01	-5.9
2002-01-01	-5.3
2002-04-01	-10.4
2002-07-01	-9.0
2002-10-01	-17.9
2003-01-01	-26.9
2003-04-01	-27.1
2003-07-01	-15.9
2003-10-01	-16.1
2004-01-01	-8.0
2004-04-01	-12.3
2004-07-01	5.7
2004-10-01	1.6
2005-01-01	-2.2
2005-04-01	-13.6
2005-07-01	-18.4
2005-10-01	-7.7
2006-01-01	-12.2
2006-04-01	-9.0
2006-07-01	-10.9
2006-10-01	-6.2
2007-01-01	0.4
2007-04-01	7.1
2007-07-01	-0.9
2007-10-01	-0.4
2008-01-01	-12.0
2008-04-01	4.0
2008-07-01	-21.8
2008-10-01	-38.2
2009-01-01	-51.2
2009-04-01	-61.9
2009-07-01	-23.6
2009-10-01	-12.6
2010-01-01	-21.3
2010-04-01	-17.6
2010-07-01	-15.5
2010-10-01	-23.9
2011-01-01	1.7
2011-04-01	-15.8
2011-07-01	-13.8
2011-10-01	-33.7
2012-01-01	-22.0
2012-04-01	-30.7
2012-07-01	-40.0
2012-10-01	-28.4
2013-01-01	-26.7
2013-04-01	-17.4
2013-07-01	-27.9
2013-10-01	-20.6
2014-01-01	-12.2
2014-04-01	-10.6
2014-07-01	-1.6
2014-10-01	0.2
2015-01-01	-5.7
2015-04-01	1.9
2015-07-01	1.9
2015-10-01	1.0
2016-01-01	-2.5
2016-04-01	-1.1
2016-07-01	-1.1
2016-10-01	0.3
2017-01-01	0.8
2017-04-01	8.0
2017-07-01	5.6
2017-10-01	7.5
2018-01-01	12.1
2018-04-01	3.9
2018-07-01	1.7
2018-10-01	-0.4