Quarter	Percent, Seasonally Adjusted
1998-01-01	90.0155720849310
1998-04-01	90.4163800575805
1998-07-01	90.3621557376676
1998-10-01	90.2972896348670
1999-01-01	90.3059642340541
1999-04-01	90.5010952174163
1999-07-01	90.5756229713617
1999-10-01	90.4850367679903
2000-01-01	90.4445467451220
2000-04-01	90.3690406735986
2000-07-01	90.7489237240520
2000-10-01	90.8301904035282
2001-01-01	91.0064918435932
2001-04-01	90.5851723466553
2001-07-01	90.7333361848098
2001-10-01	90.5730441794614
2002-01-01	90.9786526054739
2002-04-01	90.8332060448361
2002-07-01	91.0494845636200
2002-10-01	91.2937065879295
2003-01-01	91.4485105280921
2003-04-01	91.3299004659233
2003-07-01	91.4819725284974
2003-10-01	91.5727796478509
2004-01-01	91.3034426885539
2004-04-01	91.6056658170137
2004-07-01	91.6870886884866
2004-10-01	91.5719275917268
2005-01-01	91.3576933909492
2005-04-01	91.2891889249574
2005-07-01	91.1104633548963
2005-10-01	91.3148523502994
2006-01-01	91.5562904599683
2006-04-01	91.6510504627370
2006-07-01	91.0572679599330
2006-10-01	91.1093629065097
2007-01-01	90.7817328859454
2007-04-01	90.9084933566206
2007-07-01	91.1460171673690
2007-10-01	91.2575463471054
2008-01-01	91.0484092773466
2008-04-01	91.2374600568912
2008-07-01	90.9139671112039
2008-10-01	90.8224935931363
2009-01-01	90.3034241015421
2009-04-01	90.0048233388004
2009-07-01	90.0486052227402
2009-10-01	89.5997009387008
2010-01-01	89.6952298868804
2010-04-01	89.5849665041676
2010-07-01	89.1886925090033
2010-10-01	89.1763569288356
2011-01-01	89.2266743040914
2011-04-01	89.3617258293200
2011-07-01	89.4056960670488
2011-10-01	88.9948546320887
2012-01-01	89.5115311154929
2012-04-01	89.4854124147287
2012-07-01	89.1106520010193
2012-10-01	89.4200644872614
2013-01-01	88.9272056474964
2013-04-01	88.3698570996577
2013-07-01	88.1168312702772
2013-10-01	87.9293799660542
2014-01-01	88.0827905692974
2014-04-01	87.2755535815090
2014-07-01	87.5656236941530
2014-10-01	87.9049658389613
2015-01-01	87.5639467992817
2015-04-01	87.6882941194200
2015-07-01	87.7876498071644
2015-10-01	87.9283356681402
2016-01-01	87.8044597380987
2016-04-01	88.3829817373004
2016-07-01	88.3907982661091
2016-10-01	88.3260966628601
2017-01-01	88.7576905831197
2017-04-01	88.2724002053647
2017-07-01	88.5876812184367
2017-10-01	88.2698640900678
2018-01-01	88.1390474660728
2018-04-01	88.8271314636308