Quarter	Percent, Seasonally Adjusted
1998-01-01	34.3933839033676
1998-04-01	34.6528006265767
1998-07-01	34.8594412728384
1998-10-01	35.1726640630186
1999-01-01	35.2168215209768
1999-04-01	35.3757762087610
1999-07-01	35.3963106684636
1999-10-01	35.3149575926218
2000-01-01	35.3892199692065
2000-04-01	35.6782445879106
2000-07-01	35.9252226154826
2000-10-01	36.1285964028249
2001-01-01	36.3275423408156
2001-04-01	36.2189514674299
2001-07-01	36.4897996406361
2001-10-01	36.4655582334388
2002-01-01	36.6434531466428
2002-04-01	36.7453262091509
2002-07-01	36.8882520134006
2002-10-01	36.8189740892243
2003-01-01	36.9135184290932
2003-04-01	37.2929831856021
2003-07-01	37.3330758470370
2003-10-01	36.8335087545259
2004-01-01	38.7416887532877
2004-04-01	38.4255130471558
2004-07-01	38.3988293157647
2004-10-01	38.5772681015909
2005-01-01	38.2621605202800
2005-04-01	38.0205221927014
2005-07-01	37.7664437404736
2005-10-01	38.2173909268456
2006-01-01	38.3805562481112
2006-04-01	38.2802778640865
2006-07-01	37.9861515073545
2006-10-01	38.1238083846992
2007-01-01	37.5579883353996
2007-04-01	37.6960251958977
2007-07-01	38.2370056445741
2007-10-01	38.2750552211369
2008-01-01	38.6751074040171
2008-04-01	38.8534439278125
2008-07-01	38.7601432130255
2008-10-01	38.3801093061320
2009-01-01	38.3385575132605
2009-04-01	38.3056020190483
2009-07-01	38.1339040450449
2009-10-01	38.1449049002485
2010-01-01	38.1440692786968
2010-04-01	38.2176068514487
2010-07-01	38.0507394167308
2010-10-01	38.2630540230792
2011-01-01	38.2585522068482
2011-04-01	38.1677274454480
2011-07-01	38.3599172233142
2011-10-01	38.8080326498872
2012-01-01	39.4409615625068
2012-04-01	39.7883578800443
2012-07-01	39.8054918322911
2012-10-01	39.8158572988365
2013-01-01	39.8447121571634
2013-04-01	39.5912509155206
2013-07-01	39.5618453447328
2013-10-01	39.7141458842098
2014-01-01	39.9633619649251
2014-04-01	39.8179782237484
2014-07-01	40.2262878114188
2014-10-01	40.4604356050368
2015-01-01	39.9285477997529
2015-04-01	39.8689972738395
2015-07-01	39.5900774337232
2015-10-01	39.7069684634018
2016-01-01	39.9167426524079
2016-04-01	40.5809356752467
2016-07-01	40.6016549173718
2016-10-01	40.7022737685131
2017-01-01	40.8602752987797
2017-04-01	40.7246111554633
2017-07-01	41.1464226016045
2017-10-01	41.0089816613250
2018-01-01	41.1566966838987
2018-04-01	41.4917233923818