Quarter	Percent, Seasonally Adjusted
1998-01-01	89.4081975813450
1998-04-01	89.7343705092783
1998-07-01	89.9208798016047
1998-10-01	90.1468095323018
1999-01-01	90.2099977025306
1999-04-01	89.2873370309955
1999-07-01	89.5827773158836
1999-10-01	89.3369104282180
2000-01-01	89.6513747114876
2000-04-01	89.7841733508637
2000-07-01	89.9705486861256
2000-10-01	90.5158209706261
2001-01-01	90.4414383108205
2001-04-01	90.0759920786759
2001-07-01	90.1119490875633
2001-10-01	90.0881699611084
2002-01-01	90.0237819125477
2002-04-01	89.5686548618380
2002-07-01	89.4759565077151
2002-10-01	88.0871698687942
2003-01-01	87.6400391654003
2003-04-01	87.8356261681690
2003-07-01	87.9402897085354
2003-10-01	88.0767236381369
2004-01-01	88.1225967517065
2004-04-01	87.8244448065962
2004-07-01	87.4210156281084
2004-10-01	87.0319858118879
2005-01-01	86.9709196959018
2005-04-01	86.6411298343794
2005-07-01	86.7414699117630
2005-10-01	86.9322241679497
2006-01-01	87.6254998504363
2006-04-01	87.4872608739992
2006-07-01	87.6049390082971
2006-10-01	87.2351644031330
2007-01-01	87.0456997881000
2007-04-01	87.0979282557739
2007-07-01	87.2153464223302
2007-10-01	87.5432842247170
2008-01-01	87.9506347443978
2008-04-01	87.8728416265300
2008-07-01	87.3961243186909
2008-10-01	87.3334711551468
2009-01-01	86.0775948503686
2009-04-01	85.4303720768074
2009-07-01	83.3842647274760
2009-10-01	83.7257093919219
2010-01-01	84.6642516730072
2010-04-01	83.9552009014617
2010-07-01	84.0588904946564
2010-10-01	83.6296576893893
2011-01-01	82.4844521610111
2011-04-01	82.4911006171075
2011-07-01	81.7879647073501
2011-10-01	80.1847258767356
2012-01-01	79.9388597138022
2012-04-01	79.3057701240534
2012-07-01	77.9330053821164
2012-10-01	77.2832029507523
2013-01-01	76.3699308744562
2013-04-01	76.5180501483112
2013-07-01	77.1637194315060
2013-10-01	78.3137104590112
2014-01-01	79.2047651607429
2014-04-01	80.8112697441398
2014-07-01	81.0203160992727
2014-10-01	81.4092102949638
2015-01-01	81.2395662800098
2015-04-01	81.4293598284778
2015-07-01	81.9407332627876
2015-10-01	82.6168835585770
2016-01-01	82.4481671384587
2016-04-01	82.7049046059076
2016-07-01	83.2164849499410
2016-10-01	83.6920245069848
2017-01-01	84.2857555179537
2017-04-01	85.5358971538123
2017-07-01	86.1408832291722
2017-10-01	86.5382748219785
2018-01-01	87.0743591977568
2018-04-01	87.2718514082207