Quarter	Percent, Seasonally Adjusted
2000-01-01	53.3158542415599
2000-04-01	54.1551356199554
2000-07-01	54.8691409537757
2000-10-01	55.1893332529800
2001-01-01	54.8999535606630
2001-04-01	55.1289840454204
2001-07-01	55.3309640019712
2001-10-01	55.5729110101706
2002-01-01	55.8792585906129
2002-04-01	55.9657826975230
2002-07-01	56.5512754027030
2002-10-01	56.6749895787284
2003-01-01	56.6176675200812
2003-04-01	56.5181957147098
2003-07-01	56.6269067129763
2003-10-01	56.4504739817683
2004-01-01	56.7401453085408
2004-04-01	56.8964425875277
2004-07-01	56.9658194802292
2004-10-01	57.0976877400325
2005-01-01	57.1020020823332
2005-04-01	57.4660304061720
2005-07-01	57.5609126678349
2005-10-01	57.6393039780608
2006-01-01	57.8240635465373
2006-04-01	57.8504637512957
2006-07-01	58.0009321372816
2006-10-01	58.4888096193576
2007-01-01	58.8793293050210
2007-04-01	59.3161093816164
2007-07-01	59.3485360231902
2007-10-01	59.4724874485421
2008-01-01	59.5521502630123
2008-04-01	59.7456935029470
2008-07-01	60.0956379785120
2008-10-01	60.2797688658196
2009-01-01	60.8194671639881
2009-04-01	60.3180125044709
2009-07-01	60.3015352040780
2009-10-01	60.2453066385638
2010-01-01	58.8428421394014
2010-04-01	59.0233790499951
2010-07-01	58.9127724571270
2010-10-01	58.9075476624584
2011-01-01	58.6388578737301
2011-04-01	58.5514063422280
2011-07-01	58.6642828440942
2011-10-01	59.1829165045384
2012-01-01	59.1170965127434
2012-04-01	59.2142173476364
2012-07-01	59.3994818527337
2012-10-01	59.4340526532819
2013-01-01	59.3073301080262
2013-04-01	59.3038939026415
2013-07-01	59.3009930001914
2013-10-01	59.0474954346319
2014-01-01	58.4348111822581
2014-04-01	58.2847651604355
2014-07-01	58.3804957145517
2014-10-01	58.7140760609431
2015-01-01	58.7757181429212
2015-04-01	58.9176600809451
2015-07-01	58.8295424051934
2015-10-01	58.6742965367823
2016-01-01	58.4954795599212
2016-04-01	58.7352694296414
2016-07-01	58.7498619225701
2016-10-01	58.7275053215831
2017-01-01	58.7365408832095
2017-04-01	58.7925767998815
2017-07-01	58.9107771125587
2017-10-01	58.7503396108628
2018-01-01	58.6619477188058
2018-04-01	58.9603207271617