Quarter	Percent, Seasonally Adjusted
1999-04-01	6.25388231993159
1999-07-01	6.08751279159950
1999-10-01	5.94226931689964
2000-01-01	5.90591781779265
2000-04-01	5.76127053230748
2000-07-01	5.44233767623861
2000-10-01	5.40732090598638
2001-01-01	5.18281699983214
2001-04-01	4.85978460104053
2001-07-01	5.07771050768044
2001-10-01	5.12605580486361
2002-01-01	5.12445481787326
2002-04-01	5.19775391227177
2002-07-01	5.20300189040921
2002-10-01	5.20834362005284
2003-01-01	5.09166884049941
2003-04-01	4.96632154720617
2003-07-01	5.07355566928977
2003-10-01	4.95235316388134
2004-01-01	4.74611283499535
2004-04-01	4.72727034641218
2004-07-01	4.72219429391207
2004-10-01	4.76005741042197
2005-01-01	4.69945073190207
2005-04-01	4.67867858671924
2005-07-01	4.67606974220823
2005-10-01	5.16524266363125
2006-01-01	5.23991036019411
2006-04-01	5.46144199999037
2006-07-01	5.51325736132115
2006-10-01	5.45974918303131
2007-01-01	5.55681797299542
2007-04-01	5.33931842981656
2007-07-01	5.33901069324025
2007-10-01	5.11789558685470
2008-01-01	5.19337300222166
2008-04-01	5.34166992996187
2008-07-01	5.88843015743011
2008-10-01	6.36490272379848
2009-01-01	7.11062420683782
2009-04-01	7.82932535562983
2009-07-01	7.85328958336545
2009-10-01	7.82877979310062
2010-01-01	8.06538217888346
2010-04-01	7.93555404924908
2010-07-01	7.78068856065920
2010-10-01	7.96026375721898
2011-01-01	7.88937019983363
2011-04-01	8.09359572388248
2011-07-01	8.34233817598495
2011-10-01	8.49297127642403
2012-01-01	8.29820122031201
2012-04-01	8.10860316637596
2012-07-01	7.91206907696620
2012-10-01	7.91411263661324
2013-01-01	7.95823128372931
2013-04-01	7.89896372000931
2013-07-01	7.69782095132940
2013-10-01	7.30008614801854
2014-01-01	6.82036404587622
2014-04-01	6.36441139621896
2014-07-01	6.07066482490097
2014-10-01	5.78497168160394
2015-01-01	5.57851398591329
2015-04-01	5.64132523961890
2015-07-01	5.42372464443396
2015-10-01	5.11182365321936
2016-01-01	5.09715733885173
2016-04-01	4.97310748211610
2016-07-01	4.91919546465933
2016-10-01	4.77346871050072
2017-01-01	4.63760716192641
2017-04-01	4.46050213846793
2017-07-01	4.34733528108951
2017-10-01	4.32362800482482
2018-01-01	4.22326399461139
2018-04-01	4.05567784246157