Quarter	Percent, Seasonally Adjusted
1998-04-01	94.3251438826660
1999-04-01	95.1227069905801
2000-04-01	95.1601908657124
2001-04-01	95.2954319761668
2002-04-01	93.8989102998215
2003-04-01	92.3760495189067
2004-04-01	92.3340261645678
2005-04-01	92.5842422765218
2006-04-01	92.8671243696458
2007-04-01	93.6189497854855
2008-04-01	93.7473922632175
2009-04-01	92.8379011478098
2010-01-01	90.1715960456495
2010-04-01	90.6029014426026
2010-07-01	90.8737954036206
2010-10-01	90.9107669332861
2011-01-01	91.6126323568495
2011-04-01	91.6750737360366
2011-07-01	91.6209960556475
2011-10-01	91.3204284499201
2012-01-01	91.5591837843133
2012-04-01	91.6628862834345
2012-07-01	91.6128255473722
2012-10-01	91.1816812313873
2013-01-01	90.5998963249039
2013-04-01	90.3289654515960
2013-07-01	90.6774325746844
2013-10-01	91.0422025656285
2014-01-01	90.5618356094999
2014-04-01	90.7371566733150
2014-07-01	90.7791383838372
2014-10-01	91.1785080628249
2015-01-01	91.7462605088946
2015-04-01	91.3249566884370
2015-07-01	91.1996072970169
2015-10-01	91.8696180120394
2016-01-01	91.3870214891645
2016-04-01	91.1876993696769
2016-07-01	91.0932867639553
2016-10-01	91.1510909756616
2017-01-01	90.8674801854347
2017-04-01	91.2902410033007
2017-07-01	91.0724106462390
2017-10-01	91.1702140071796
2018-01-01	91.5147199084483
2018-04-01	91.2417622662650