Quarter	Percent, Seasonally Adjusted
1999-01-01	22.2622307261925
1999-04-01	22.2432434370827
1999-07-01	22.0338430507221
1999-10-01	21.8413288741826
2000-01-01	21.5444128628327
2000-04-01	21.3499837580806
2000-07-01	21.0745757746994
2000-10-01	20.7700988578851
2001-01-01	21.9541510996626
2001-04-01	21.6527737715260
2001-07-01	21.5040888953493
2001-10-01	21.2713173772459
2002-01-01	21.0393808655389
2002-04-01	20.8417506763058
2002-07-01	20.6506662603698
2002-10-01	20.4988186473264
2003-01-01	20.2311920934293
2003-04-01	20.0811520801024
2003-07-01	19.8245555142522
2003-10-01	19.6423300443317
2004-01-01	19.8188246402817
2004-04-01	19.8286496618695
2004-07-01	19.6886636665063
2004-10-01	19.5394239299592
2005-01-01	19.3227878043290
2005-04-01	19.0894693564589
2005-07-01	19.0380124090495
2005-10-01	18.8779287317107
2006-01-01	18.7268104382484
2006-04-01	18.8297176534989
2006-07-01	18.7165210344956
2006-10-01	18.7456516122179
2007-01-01	18.8037908515388
2007-04-01	18.5372419719126
2007-07-01	18.6100584312933
2007-10-01	18.6402067872690
2008-01-01	18.3675564428222
2008-04-01	18.3291246248753
2008-07-01	18.4035916244195
2008-10-01	18.5070523057386
2009-01-01	18.4754618825512
2009-04-01	18.9696348798271
2009-07-01	19.6642348352683
2009-10-01	19.4952174842771
2010-01-01	19.4002100157153
2010-04-01	19.1262953874518
2010-07-01	19.4318553530983
2010-10-01	19.5124495655616
2011-01-01	19.5460116695478
2011-04-01	19.6834215500684
2011-07-01	19.6145108654376
2011-10-01	19.6308558631940
2012-01-01	19.9393799556869
2012-04-01	19.7672847429338
2012-07-01	19.8896870512789
2012-10-01	20.0819301649187
2013-01-01	19.9737894173330
2013-04-01	20.4315901419233
2013-07-01	20.2281269525294
2013-10-01	20.3303256847087
2014-01-01	20.6804714589995
2014-04-01	20.4530586016783
2014-07-01	20.5155659195123
2014-10-01	20.2255102961710
2015-01-01	20.3862640194211
2015-04-01	20.3371501830339
2015-07-01	20.4909976921470
2015-10-01	20.6394547969340
2016-01-01	20.5225476350023
2016-04-01	20.7875512029872
2016-07-01	20.9320746680818
2016-10-01	20.9712883200289
2017-01-01	20.9831252258552
2017-04-01	21.1165603914192
2017-07-01	21.0356412611258
2017-10-01	21.1475464740217
2018-01-01	21.2549105960494
2018-04-01	21.1190596006812
2018-07-01	21.1695122293161