Quarter	Percent, Seasonally Adjusted
1999-01-01	3.60151098461122
1999-04-01	3.42581554798574
1999-07-01	3.28381740191335
1999-10-01	3.45038156669872
2000-01-01	3.41543213757768
2000-04-01	3.03870101905427
2000-07-01	3.17754251369762
2000-10-01	2.94469136859265
2001-01-01	2.82541284296816
2001-04-01	3.16944270773145
2001-07-01	3.24140857457978
2001-10-01	3.45517315069821
2002-01-01	3.70434075461969
2002-04-01	3.26328220115981
2002-07-01	3.44940558619517
2002-10-01	3.52453304861062
2003-01-01	3.61086600838760
2003-04-01	3.76963696793310
2003-07-01	3.72441374572843
2003-10-01	3.91322538810732
2004-01-01	4.33167380595117
2004-04-01	4.90363457199605
2004-07-01	4.91874492100131
2004-10-01	4.82322413192493
2005-01-01	4.71705347786807
2005-04-01	4.84677276807466
2005-07-01	4.88295046378163
2005-10-01	4.93708001380408
2006-01-01	4.97843537207092
2006-04-01	4.70320538860073
2006-07-01	4.34528276941261
2006-10-01	4.37827545340108
2007-01-01	4.32719684308986
2007-04-01	4.34490253117195
2007-07-01	4.25623225758507
2007-10-01	4.04816833273889
2008-01-01	3.71991386742887
2008-04-01	3.35315776653942
2008-07-01	3.63521998185932
2008-10-01	3.72485297414219
2009-01-01	4.20039236439161
2009-04-01	4.71046786850393
2009-07-01	5.02766954793528
2009-10-01	4.95676134523270
2010-01-01	4.50760444364111
2010-04-01	4.55903323209416
2010-07-01	4.33596332355007
2010-10-01	4.11034656831810
2011-01-01	4.23559184149035
2011-04-01	3.91154025777305
2011-07-01	3.66423639829241
2011-10-01	4.11024999083163
2012-01-01	3.82842839011857
2012-04-01	4.36435715170545
2012-07-01	4.57145358187825
2012-10-01	4.57187250910452
2013-01-01	4.96972417612973
2013-04-01	4.71089866388507
2013-07-01	4.92232957812932
2013-10-01	4.98228971434872
2014-01-01	5.06852354386133
2014-04-01	5.21197837789369
2014-07-01	5.25861802311481
2014-10-01	5.22257543677403
2015-01-01	5.11072154979556
2015-04-01	5.35776699297310
2015-07-01	5.04953593403221
2015-10-01	5.18974767006744
2016-01-01	5.37662744145127
2016-04-01	5.53123129603216
2016-07-01	5.53926965601702
2016-10-01	5.25314093106927
2017-01-01	5.29997629883290
2017-04-01	5.11210259841720
2017-07-01	5.12008243032362
2017-10-01	5.01714170375133
2018-01-01	4.62372695801184
2018-04-01	4.27075656551786