Quarter	Percent, Seasonally Adjusted
1998-01-01	27.8997318017664
1998-04-01	28.1228625082759
1998-07-01	28.1379856799223
1998-10-01	27.9426669164334
1999-01-01	27.9707958091606
1999-04-01	28.0361712153678
1999-07-01	28.0939783974560
1999-10-01	28.0486125282494
2000-01-01	28.2538389898824
2000-04-01	28.5870475852876
2000-07-01	28.8159800045634
2000-10-01	29.0034219410447
2001-01-01	28.7628750402949
2001-04-01	29.1455969028859
2001-07-01	29.2814261163992
2001-10-01	29.4345154271309
2002-01-01	29.5482094200218
2002-04-01	29.3879876489144
2002-07-01	29.3319801203926
2002-10-01	29.2709780539286
2003-01-01	29.5022370171820
2003-04-01	29.6393127588610
2003-07-01	29.9100267622457
2003-10-01	30.0464584196218
2004-01-01	30.0104890605030
2004-04-01	29.9594882827974
2004-07-01	30.0050082647220
2004-10-01	29.9387243384844
2005-01-01	29.8343148513644
2005-04-01	29.6400145194505
2005-07-01	29.4393859159724
2005-10-01	29.4538223466082
2006-01-01	29.3764077904129
2006-04-01	29.5636020037053
2006-07-01	29.7746851378082
2006-10-01	29.9346745764257
2007-01-01	30.0173300587982
2007-04-01	30.1051746093234
2007-07-01	30.2300916987221
2007-10-01	30.2450765299210
2008-01-01	30.3803027593051
2008-04-01	30.2606535763471
2008-07-01	30.4260995201362
2008-10-01	30.2576653827588
2009-01-01	30.1614548851222
2009-04-01	29.9537467626096
2009-07-01	29.7673645816285
2009-10-01	29.7283242408338
2010-01-01	29.9941829922808
2010-04-01	29.9121889084712
2010-07-01	29.7151658329569
2010-10-01	29.7032933818514
2011-01-01	29.7017155692041
2011-04-01	29.3600440685371
2011-07-01	29.3862549678576
2011-10-01	29.4217677902950
2012-01-01	29.1420693294210
2012-04-01	28.6043353888058
2012-07-01	28.0730130759920
2012-10-01	27.8454845159503
2013-01-01	27.5580307999214
2013-04-01	27.0851071637347
2013-07-01	26.9942393613087
2013-10-01	26.8637886569789
2014-01-01	26.7436908922823
2014-04-01	26.7168449984907
2014-07-01	26.4389633408673
2014-10-01	26.0317349388427
2015-01-01	25.9607586414739
2015-04-01	26.0123558093232
2015-07-01	25.9982275408935
2015-10-01	25.9282009974541
2016-01-01	25.4813267626563
2016-04-01	25.1571823609166
2016-07-01	24.8989903441514
2016-10-01	24.4584776564751
2017-01-01	24.3487067198770
2017-04-01	24.3145430501189
2017-07-01	23.8897462958367
2017-10-01	23.9369818863459
2018-01-01	23.7406345533860
2018-04-01	23.4892391478482