Quarter	Percent, Seasonally Adjusted
1998-04-01	87.9000000000000
1999-04-01	87.5000000000000
2000-04-01	87.4000000000000
2001-04-01	87.9000000000000
2002-04-01	88.3000000000000
2003-04-01	88.1000000000000
2004-04-01	88.2000000000000
2005-04-01	88.5000000000000
2006-04-01	88.3000000000000
2007-04-01	88.9000000000000
2008-04-01	89.8000000000000
2009-04-01	90.0000000000000
2010-01-01	88.0607541496317
2010-04-01	88.3750017404964
2010-07-01	88.4680094387888
2010-10-01	88.4303339110700
2011-01-01	88.9567405105634
2011-04-01	88.9938554632909
2011-07-01	88.8221448176347
2011-10-01	89.3106270289612
2012-01-01	89.2253610155633
2012-04-01	89.4116217897533
2012-07-01	89.5247330766801
2012-10-01	89.5358034828405
2013-01-01	89.1225966279825
2013-04-01	89.0062335038702
2013-07-01	89.2298355046545
2013-10-01	89.4224033910806
2014-01-01	89.5411216101322
2014-04-01	89.8097240783452
2014-07-01	89.9229527617335
2014-10-01	90.4967543780655
2015-01-01	90.3048267854807
2015-04-01	90.1956531165608
2015-07-01	89.8374445427624
2015-10-01	90.4852763216410
2016-01-01	91.1591405301141
2016-04-01	90.3585271648494
2016-07-01	90.1739655261008
2016-10-01	90.6183555566016
2017-01-01	90.6478722165374
2017-04-01	90.2584556561146
2017-07-01	90.1980175974841
2017-10-01	90.4773226658957
2018-01-01	90.7493026909857
2018-04-01	90.6728683434887