Quarter	Net Percent, Seasonally Adjusted
2005-01-01	-8
2005-04-01	-8
2005-07-01	-12
2005-10-01	-10
2006-01-01	-17
2006-04-01	-14
2006-07-01	-18
2006-10-01	-19
2007-01-01	-22
2007-04-01	-19
2007-07-01	-22
2007-10-01	-22
2008-01-01	-23
2008-04-01	-15
2008-07-01	-13
2008-10-01	-11
2009-01-01	-1
2009-04-01	5
2009-07-01	5
2009-10-01	5
2010-01-01	5
2010-04-01	6
2010-07-01	2
2010-10-01	1
2011-01-01	1
2011-04-01	3
2011-07-01	-4
2011-10-01	-7
2012-01-01	-9
2012-04-01	-12
2012-07-01	-11
2012-10-01	-12
2013-01-01	-13
2013-04-01	-12
2013-07-01	-16
2013-10-01	-18
2014-01-01	-23
2014-04-01	-22
2014-07-01	-23
2014-10-01	-28
2015-01-01	-32
2015-04-01	-28
2015-07-01	-30
2015-10-01	-33
2016-01-01	-35
2016-04-01	-34
2016-07-01	-35
2016-10-01	-38
2017-01-01	-40
2017-04-01	-38
2017-07-01	-41
2017-10-01	-45
2018-01-01	-46
2018-04-01	-42
2018-07-01	-43