Quarter	Percent, Seasonally Adjusted
1999-01-01	47.7025314086215
1999-04-01	47.7560752254348
1999-07-01	47.8792473838667
1999-10-01	48.1285395454067
2000-01-01	48.1067094509342
2000-04-01	47.3967181442291
2000-07-01	47.5501623024576
2000-10-01	48.2197243543155
2001-01-01	48.5897243811222
2001-04-01	48.7869285923279
2001-07-01	48.6318220656555
2001-10-01	48.6156920498883
2002-01-01	48.4572065009466
2002-04-01	48.4604863601221
2002-07-01	48.0981792062083
2002-10-01	48.0126039579210
2003-01-01	48.5415183754718
2003-04-01	48.2840727601376
2003-07-01	48.3749706279370
2003-10-01	47.4996132008261
2004-01-01	47.5387589825438
2004-04-01	47.5704271155674
2004-07-01	47.3443728052296
2004-10-01	47.3648697548346
2005-01-01	46.6412151091917
2005-04-01	46.7365442054526
2005-07-01	46.7663454463059
2005-10-01	46.6590934353027
2006-01-01	47.1367446392603
2006-04-01	46.9855425304850
2006-07-01	47.0471884019736
2006-10-01	46.3777679194645
2007-01-01	46.2703529668986
2007-04-01	46.2745361653719
2007-07-01	46.8320388822895
2007-10-01	46.2507265899232
2008-01-01	46.0277850268473
2008-04-01	46.6534135461476
2008-07-01	45.8942249498976
2008-10-01	46.7116410465995
2009-01-01	46.3463845407747
2009-04-01	46.6965638847779
2009-07-01	46.6327314679804
2009-10-01	46.4339140510806
2010-01-01	45.7212786326960
2010-04-01	46.2479650934658
2010-07-01	45.9155906757281
2010-10-01	45.8361771490671
2011-01-01	47.1828407499159
2011-04-01	46.4481416789727
2011-07-01	46.8279492675989
2011-10-01	46.7469805074330
2012-01-01	46.9744060507813
2012-04-01	46.8351157945982
2012-07-01	46.6210907341105
2012-10-01	46.5755401154805
2013-01-01	46.7485076661520
2013-04-01	46.2051483925407
2013-07-01	46.0760503017176
2013-10-01	46.7350337587532
2014-01-01	46.6359818595190
2014-04-01	46.4567522289867
2014-07-01	46.4568500694453
2014-10-01	46.4288128449054
2015-01-01	46.2912306794557
2015-04-01	46.8986194353070
2015-07-01	46.8363957248425
2015-10-01	46.7346782378664
2016-01-01	47.0908499550976
2016-04-01	46.9395683577126
2016-07-01	47.1019997195032
2016-10-01	46.4161219409688
2017-01-01	46.4096488661168
2017-04-01	46.2498064656674
2017-07-01	46.0457889266563
2017-10-01	45.9516340970942
2018-01-01	45.9776771947310
2018-04-01	46.1292466320468