Quarter	Percent, Seasonally Adjusted
1999-04-01	5.36134749451878
1999-07-01	4.87588439058663
1999-10-01	4.72501247676811
2000-01-01	4.41599420133662
2000-04-01	4.03252976599120
2000-07-01	3.65528249162246
2000-10-01	3.52634183129126
2001-01-01	3.31971438191086
2001-04-01	3.26611642593722
2001-07-01	3.32658634083003
2001-10-01	3.40435543840526
2002-01-01	3.79893474845960
2002-04-01	3.69320555206368
2002-07-01	3.70188334645925
2002-10-01	3.95970145581968
2003-01-01	4.07538503498676
2003-04-01	3.98802014318948
2003-07-01	4.20578104078160
2003-10-01	3.92614713062721
2004-01-01	3.91567769992254
2004-04-01	3.99632394447215
2004-07-01	3.70576963892405
2004-10-01	3.77445261884718
2005-01-01	3.57285847527459
2005-04-01	3.63236391427377
2005-07-01	3.70591492360670
2005-10-01	3.78623523664057
2006-01-01	3.78112178616239
2006-04-01	3.86133861580432
2006-07-01	3.85734040366277
2006-10-01	3.90104724319084
2007-01-01	4.27378029138941
2007-04-01	4.13987553842700
2007-07-01	4.25975982069638
2007-10-01	4.36379248065758
2008-01-01	4.62230177296817
2008-04-01	4.90690584927776
2008-07-01	6.10257877131539
2008-10-01	6.99286606448289
2009-01-01	9.64338901790346
2009-04-01	10.92967554732390
2009-07-01	11.82793155363630
2009-10-01	11.72044664163880
2010-01-01	12.26663709438380
2010-04-01	12.91175928380360
2010-07-01	13.34309770043210
2010-10-01	13.69183339004230
2011-01-01	13.87649013543960
2011-04-01	13.88174810993520
2011-07-01	14.45616728029570
2011-10-01	14.07559724984280
2012-01-01	14.54488540574970
2012-04-01	13.95982797500290
2012-07-01	14.05474005451740
2012-10-01	13.38822626314780
2013-01-01	13.15378557212700
2013-04-01	12.93629631759390
2013-07-01	12.16043892891700
2013-10-01	11.32514437319660
2014-01-01	11.51991803745280
2014-04-01	10.87394256979480
2014-07-01	10.81753245186850
2014-10-01	9.59289752709837
2015-01-01	9.38590691922504
2015-04-01	9.17632766458674
2015-07-01	8.77111408230748
2015-10-01	8.29411627112125
2016-01-01	8.12561846248003
2016-04-01	7.98912710743492
2016-07-01	7.53687522610836
2016-10-01	6.41486720793980
2017-01-01	6.41569231591501
2017-04-01	5.70357634465203
2017-07-01	5.87490024773073
2017-10-01	5.45094819131734
2018-01-01	4.91776945728464
2018-04-01	4.90487806793375