Quarter	Net Percent, Seasonally Adjusted
2000-04-01	30.7
2000-07-01	33.1
2000-10-01	36.7
2001-01-01	39.8
2001-04-01	27.9
2001-07-01	23.8
2001-10-01	23.8
2002-01-01	31.4
2002-04-01	27.5
2002-07-01	30.3
2002-10-01	33.7
2003-01-01	41.7
2003-04-01	22.7
2003-07-01	32.6
2003-10-01	40.6
2004-01-01	45.7
2004-04-01	34.2
2004-07-01	37.4
2004-10-01	41.1
2005-01-01	44.5
2005-04-01	35.6
2005-07-01	40
2005-10-01	47.2
2006-01-01	45.1
2006-04-01	45.1
2006-07-01	41.2
2006-10-01	48.5
2007-01-01	47.7
2007-04-01	40.3
2007-07-01	39.8
2007-10-01	41.2
2008-01-01	43.1
2008-04-01	33.6
2008-07-01	25.2
2008-10-01	11.1
2009-01-01	-8
2009-04-01	6.9
2009-07-01	22.6
2009-10-01	28.9
2010-01-01	36.5
2010-04-01	35.4
2010-07-01	40
2010-10-01	43.9
2011-01-01	41.4
2011-04-01	32.1
2011-07-01	22.6
2011-10-01	25.3
2012-01-01	33.1
2012-04-01	20.3
2012-07-01	18.8
2012-10-01	18.6
2013-01-01	18.6
2013-04-01	9.8
2013-07-01	10.8
2013-10-01	11.5
2014-01-01	20
2014-04-01	17.2
2014-07-01	18.5
2014-10-01	22.0
2015-01-01	16.0
2015-04-01	15.0
2015-07-01	16.0
2015-10-01	17.0
2016-01-01	17.0
2016-04-01	11.0
2016-07-01	11.0
2016-10-01	18.0
2017-01-01	16.0
2017-04-01	16.0
2017-07-01	22.0
2017-10-01	27.0
2018-01-01	25.0
2018-04-01	26.0