Quarter	Net Percent, Seasonally Adjusted
1996-01-01	-23.8
1996-04-01	-27.2
1996-07-01	-12.5
1996-10-01	-3
1997-01-01	0.8
1997-04-01	8.6
1997-07-01	12.8
1997-10-01	17.4
1998-01-01	13.9
1998-04-01	19.4
1998-07-01	7.2
1998-10-01	-2.8
1999-01-01	-6.6
1999-04-01	-8.5
1999-07-01	2.3
1999-10-01	12.4
2000-01-01	17.4
2000-04-01	30.3
2000-07-01	24.1
2000-10-01	18.6
2001-01-01	17.2
2001-04-01	4.1
2001-07-01	-10.2
2001-10-01	-19.4
2002-01-01	-19.3
2002-04-01	-8.8
2002-07-01	-0.4
2002-10-01	0.8
2003-01-01	2.8
2003-04-01	-0.3
2003-07-01	-0.7
2003-10-01	10.8
2004-01-01	16.1
2004-04-01	15.3
2004-07-01	15
2004-10-01	19.2
2005-01-01	12.9
2005-04-01	2.3
2005-07-01	6.8
2005-10-01	12
2006-01-01	18.1
2006-04-01	28.1
2006-07-01	32.5
2006-10-01	27.2
2007-01-01	34
2007-04-01	28.5
2007-07-01	23.8
2007-10-01	16.7
2008-01-01	14.2
2008-04-01	10.9
2008-07-01	1.5
2008-10-01	-11.2
2009-01-01	-35.6
2009-04-01	-38.3
2009-07-01	-25.2
2009-10-01	0.2
2010-01-01	5.8
2010-04-01	26.4
2010-07-01	31.6
2010-10-01	27
2011-01-01	37
2011-04-01	40.2
2011-07-01	19.2
2011-10-01	2.6
2012-01-01	8.5
2012-04-01	11.2
2012-07-01	-0.6
2012-10-01	-10.3
2013-01-01	-6.5
2013-04-01	-6.2
2013-07-01	-1.3
2013-10-01	7.6
2014-01-01	11
2014-04-01	9.8
2014-07-01	4.2
2014-10-01	-1.1
2015-01-01	1.6
2015-04-01	4.9
2015-07-01	11.5
2015-10-01	11.3
2016-01-01	14.1
2016-04-01	-1.3
2016-07-01	7.4
2016-10-01	13.9
2017-01-01	22.4
2017-04-01	30.1
2017-07-01	29.4
2017-10-01	32.9
2018-01-01	33.0
2018-04-01	23.7
2018-07-01	18.8
2018-10-01	14.5