Quarter	Percent, Seasonally Adjusted
1998-01-01	29.7328428857734
1998-04-01	29.7488606217792
1998-07-01	30.1827744660248
1998-10-01	30.0111721841034
1999-01-01	30.1996297521500
1999-04-01	30.0648431770349
1999-07-01	30.0982328354500
1999-10-01	30.0001646841457
2000-01-01	29.9501421720556
2000-04-01	30.2280283218429
2000-07-01	29.7592465295324
2000-10-01	29.7025772415763
2001-01-01	29.6817061521449
2001-04-01	29.7455111517424
2001-07-01	29.4718750010592
2001-10-01	29.5360506408050
2002-01-01	29.2846639182557
2002-04-01	29.2026523140737
2002-07-01	29.2668363300553
2002-10-01	29.7792694484585
2003-01-01	29.9097871158424
2003-04-01	30.0034728236609
2003-07-01	29.7611138639817
2003-10-01	29.9581335164556
2004-01-01	30.3542096234476
2004-04-01	30.4636067708167
2004-07-01	30.6546846671608
2004-10-01	30.7617501553603
2005-01-01	30.9580667945998
2005-04-01	30.8703924149426
2005-07-01	30.8970243413735
2005-10-01	30.7967914253015
2006-01-01	30.7506662402336
2006-04-01	30.5455384783041
2006-07-01	30.6909469067764
2006-10-01	30.8303109096786
2007-01-01	30.7254370515570
2007-04-01	31.0211884334520
2007-07-01	30.6642967805015
2007-10-01	31.0094895948789
2008-01-01	30.8328853125085
2008-04-01	30.9059627146267
2008-07-01	31.2305426914595
2008-10-01	31.3272600808671
2009-01-01	31.9270085770377
2009-04-01	31.9783365858915
2009-07-01	32.6742716223672
2009-10-01	32.5771481914926
2010-01-01	32.3625433580363
2010-04-01	32.9521862496668
2010-07-01	32.9465712361857
2010-10-01	32.8524594602059
2011-01-01	32.6445278156599
2011-04-01	32.7754524061310
2011-07-01	32.7389564565073
2011-10-01	33.4532476007991
2012-01-01	33.7969284126788
2012-04-01	33.4175370743231
2012-07-01	33.2812653916178
2012-10-01	34.3094719998554
2013-01-01	34.7452094611224
2013-04-01	34.8841643749298
2013-07-01	34.8129647531878
2013-10-01	35.0748347563634
2014-01-01	35.6075874927723
2014-04-01	35.1795006336516
2014-07-01	35.2837351440720
2014-10-01	35.8639718339593
2015-01-01	36.0752047007254
2015-04-01	35.9815246983544
2015-07-01	36.0361937875714
2015-10-01	35.4487098103834
2016-01-01	36.4034710221697
2016-04-01	35.9849596999207
2016-07-01	35.3587637397140
2016-10-01	35.8524596985452
2017-01-01	35.8617599314321
2017-04-01	35.4142526897533
2017-07-01	35.2354219306761
2017-10-01	35.3308293963724
2018-01-01	35.5280911368395
2018-04-01	35.7330410602456