Quarter	Percent, Seasonally Adjusted
1999-01-01	60.6413398996378
1999-04-01	61.1352599089839
1999-07-01	60.5932724175510
1999-10-01	60.6544081548800
2000-01-01	60.6268416419735
2000-04-01	60.5944645165722
2000-07-01	61.5811006916558
2000-10-01	61.2347625220641
2001-01-01	61.5732857467648
2001-04-01	61.0758567673044
2001-07-01	61.9592370552461
2001-10-01	61.5293381400721
2002-01-01	62.4779669544741
2002-04-01	61.6979444955034
2002-07-01	60.3594421678334
2002-10-01	60.0053249887126
2003-01-01	60.3456847381793
2003-04-01	60.2853925981294
2003-07-01	59.5350970612041
2003-10-01	61.2469819053826
2004-01-01	62.2648947367044
2004-04-01	62.8471854598784
2004-07-01	63.5323797578592
2004-10-01	62.7701939386832
2005-01-01	63.4110909878038
2005-04-01	62.7276871252598
2005-07-01	63.5421358016238
2005-10-01	64.3716920888282
2006-01-01	63.9502781417268
2006-04-01	64.2772974417701
2006-07-01	63.5586752932875
2006-10-01	63.2253659591408
2007-01-01	63.5968729070833
2007-04-01	64.7009280971721
2007-07-01	64.4875707395734
2007-10-01	63.9477980209051
2008-01-01	63.9093790153422
2008-04-01	64.0180632203593
2008-07-01	64.8982630352790
2008-10-01	64.2887258174369
2009-01-01	63.5921133791618
2009-04-01	64.2914671055022
2009-07-01	64.8586406836552
2009-10-01	64.7155497631805
2010-01-01	64.6813624003202
2010-04-01	64.3162492976222
2010-07-01	63.6858221291544
2010-10-01	64.5256141287714
2011-01-01	63.0233246907178
2011-04-01	62.9345636386464
2011-07-01	63.0336149050090
2011-10-01	63.3993113214230
2012-01-01	63.5339882447264
2012-04-01	62.2161919006477
2012-07-01	62.7563021282428
2012-10-01	63.4014687940042
2013-01-01	62.6577252422545
2013-04-01	62.9582811243651
2013-07-01	63.1913541017394
2013-10-01	62.7826228754196
2014-01-01	63.4169924221092
2014-04-01	63.8932115156070
2014-07-01	63.0378872459813
2014-10-01	63.2462892208531
2015-01-01	62.9734963203769
2015-04-01	63.5876178423270
2015-07-01	63.8469379876993
2015-10-01	62.8233471051151
2016-01-01	62.3050327051175
2016-04-01	62.8546043823595
2016-07-01	62.3710875800244
2016-10-01	63.5977414199604
2017-01-01	64.5558183751754
2017-04-01	64.3039955395542
2017-07-01	65.1630775915058
2017-10-01	65.5151846563072
2018-01-01	65.5518808084023
2018-04-01	65.7015504222970