Quarter	Percent, Seasonally Adjusted
1999-07-01	58.7584518263051
1999-10-01	58.7328378683773
2000-01-01	58.2178067557718
2000-04-01	57.8401088936524
2000-07-01	58.1354516169657
2000-10-01	57.1923906496691
2001-01-01	56.8014558178648
2001-04-01	58.5933925436155
2001-07-01	59.1073020134433
2001-10-01	59.0270109705941
2002-01-01	59.6323802025721
2002-04-01	59.3320614048511
2002-07-01	59.7129580047150
2002-10-01	59.3778475729222
2003-01-01	57.6100415835100
2003-04-01	57.5166882236850
2003-07-01	57.5733146364097
2003-10-01	58.2570792071599
2004-01-01	59.4086725895526
2004-04-01	58.3856057906910
2004-07-01	58.4048219380518
2004-10-01	59.0358814695453
2005-01-01	59.0820281738245
2005-04-01	58.7724920011466
2005-07-01	58.5470557555866
2005-10-01	58.4561023679211
2006-01-01	59.0783336291296
2006-04-01	59.0468371140405
2006-07-01	58.9472492428770
2006-10-01	60.1671792575501
2007-01-01	60.4733778111101
2007-04-01	60.8340773897472
2007-07-01	60.6936307701196
2007-10-01	60.3141377708241
2008-01-01	60.8336505732901
2008-04-01	60.5819224475023
2008-07-01	60.6741125434978
2008-10-01	60.2886294089335
2009-01-01	60.3973249031687
2009-04-01	59.8839049834860
2009-07-01	60.4524096233774
2009-10-01	60.4872953372728
2010-01-01	60.1954288610852
2010-04-01	60.9440570175644
2010-07-01	61.1315671548810
2010-10-01	61.1320142013512
2011-01-01	61.5477571541591
2011-04-01	62.1816400566923
2011-07-01	62.0939748041997
2011-10-01	62.7998422889082
2012-01-01	62.9178938401162
2012-04-01	63.3718966031268
2012-07-01	62.9204159768915
2012-10-01	63.2698331449006
2013-01-01	63.1232661054761
2013-04-01	64.4079633735770
2013-07-01	64.8515572649323
2013-10-01	65.0098876292786
2014-01-01	65.3849942255702
2014-04-01	65.9954600263382
2014-07-01	65.8265984661321
2014-10-01	65.8226811361338
2015-01-01	66.2336177673134
2015-04-01	65.7615444131448
2015-07-01	66.0357602842933
2015-10-01	65.9884990297836
2016-01-01	65.8352311085575
2016-04-01	65.6946513267865
2016-07-01	66.4439849631542
2016-10-01	66.7232184332977
2017-01-01	67.3859339363146
2017-04-01	67.3954466368014
2017-07-01	67.3583350939136
2017-10-01	67.6611107578720
2018-01-01	67.3443333723176
2018-04-01	66.9462177958057
2018-07-01	66.6480318108868