Quarter	Percent, Seasonally Adjusted
1998-01-01	34.6041055718475
1998-04-01	33.3658917757374
1998-07-01	33.9976553341149
1998-10-01	35.9332023575638
1999-01-01	35.6794696821993
1999-04-01	35.0087668030392
1999-07-01	35.6671838634600
1999-10-01	37.0886566008517
2000-01-01	35.4033662217063
2000-04-01	35.4118552732871
2000-07-01	35.1065872863453
2000-10-01	35.7910906298003
2001-01-01	35.8949789191261
2001-04-01	36.1791730474732
2001-07-01	36.8189638692411
2001-10-01	36.3636363636364
2002-01-01	34.8008385744235
2002-04-01	34.8297508084459
2002-07-01	35.4526475612071
2002-10-01	37.5781694144400
2003-01-01	36.1457153642884
2003-04-01	34.4172932330827
2003-07-01	34.2258004119079
2003-10-01	34.3342036553525
2004-01-01	36.3602599814299
2004-04-01	37.0767807585569
2004-07-01	38.3637368711996
2004-10-01	37.1192660550459
2005-01-01	37.2989766081871
2005-04-01	37.5568078531176
2005-07-01	37.9858976676912
2005-10-01	37.6191332494156
2006-01-01	37.8644249686997
2006-04-01	37.8464818763326
2006-07-01	36.5642655367232
2006-10-01	36.8661168626075
2007-01-01	36.6270949720670
2007-04-01	37.4024622854170
2007-07-01	36.8166925331954
2007-10-01	36.5414307771487
2008-01-01	37.2057318321392
2008-04-01	36.7301803334468
2008-07-01	36.9089984748348
2008-10-01	37.5063269782352
2009-01-01	37.2918418839361
2009-04-01	37.3742454728370
2009-07-01	37.3224135049306
2009-10-01	37.5978677328003
2010-01-01	37.9629629629630
2010-04-01	37.9100049447833
2010-07-01	38.2251437962202
2010-10-01	38.0016380016380
2011-01-01	37.1428571428571
2011-04-01	38.2262001627339
2011-07-01	38.4041518001946
2011-10-01	39.9417852522639
2012-01-01	39.4164114138320
2012-04-01	39.1967871485944
2012-07-01	39.9967989756722
2012-10-01	39.7767145135566
2013-01-01	39.0764331210191
2013-04-01	36.6788611420391
2013-07-01	37.0076238881830
2013-10-01	36.3477709027447
2014-01-01	35.5964467005076
2014-04-01	35.6882623158562
2014-07-01	36.6656121480544
2014-10-01	36.1396303901437
2015-01-01	35.6419987349779
2015-04-01	34.5589395613066
2015-07-01	35.2959697732997
2015-10-01	34.4069128043991
2016-01-01	35.4519774011299
2016-04-01	32.3101018010963
2016-07-01	31.7122752150117
2016-10-01	32.7454346808179
2017-01-01	31.9377431906615
2017-04-01	31.6353471035875
2017-07-01	30.3020914020139
2017-10-01	29.1299644568073
2018-01-01	30.7478797224364
2018-04-01	30.6674869270994