Quarter	Percent, Seasonally Adjusted
2000-01-01	82.9224192435990
2000-04-01	83.5928535284536
2000-07-01	84.0557764159035
2000-10-01	84.2284011163690
2001-01-01	84.1488980554870
2001-04-01	84.2247798021483
2001-07-01	84.3009125014437
2001-10-01	84.4717371458926
2002-01-01	84.7294938051619
2002-04-01	84.7230539591104
2002-07-01	84.8222060367850
2002-10-01	84.9113215021912
2003-01-01	85.2573908577923
2003-04-01	85.2245731883864
2003-07-01	85.4554180195299
2003-10-01	85.4434982416300
2004-01-01	85.6488661814705
2004-04-01	85.9476708466135
2004-07-01	86.1609877542205
2004-10-01	85.9402761313614
2005-01-01	86.1129540114188
2005-04-01	86.3164289527670
2005-07-01	86.5459470753514
2005-10-01	86.8358130510107
2006-01-01	87.0446497235427
2006-04-01	87.0091464893820
2006-07-01	87.0664352316605
2006-10-01	87.3785141222920
2007-01-01	87.3854247608077
2007-04-01	87.5618168573090
2007-07-01	87.7262548082012
2007-10-01	87.8912283903310
2008-01-01	88.2311281056700
2008-04-01	88.6166580118559
2008-07-01	88.5385433376648
2008-10-01	88.7985155219191
2009-01-01	88.9387202120289
2009-04-01	88.7669276719086
2009-07-01	88.6701180636862
2009-10-01	88.6397991789317
2010-01-01	87.7087482810852
2010-04-01	87.8911511638389
2010-07-01	87.8883370191289
2010-10-01	87.9502565175266
2011-01-01	87.6387674697010
2011-04-01	87.1889000791283
2011-07-01	87.1630954562994
2011-10-01	87.6421247421255
2012-01-01	87.7339926927122
2012-04-01	87.5959761069982
2012-07-01	87.7475273529300
2012-10-01	87.5184426273636
2013-01-01	87.5079912646295
2013-04-01	87.5303760699190
2013-07-01	87.4601922005050
2013-10-01	87.2538160460095
2014-01-01	87.0923896536695
2014-04-01	87.0157898250649
2014-07-01	86.9464640514513
2014-10-01	87.2504101150060
2015-01-01	87.2653266447130
2015-04-01	87.0217502866180
2015-07-01	87.0889380182043
2015-10-01	87.0245220561024
2016-01-01	86.9125667330348
2016-04-01	87.0199079678976
2016-07-01	87.0237867537584
2016-10-01	86.8212224449286
2017-01-01	86.9281224111608
2017-04-01	86.7026193290485
2017-07-01	86.6481603981994
2017-10-01	86.5036872404016
2018-01-01	86.7712377207836
2018-04-01	86.8226615694692