Quarter	Percent, Seasonally Adjusted
1999-01-01	88.0678752164455
1999-04-01	88.1416702343139
1999-07-01	88.6330418687662
1999-10-01	88.0395371077461
2000-01-01	88.0244459538433
2000-04-01	87.9590137149548
2000-07-01	87.5364444676141
2000-10-01	87.9713628747432
2001-01-01	87.9312974059080
2001-04-01	87.5332773421276
2001-07-01	88.1032073774597
2001-10-01	88.0233359178831
2002-01-01	87.8948999482163
2002-04-01	88.0517451783886
2002-07-01	87.5618340434160
2002-10-01	87.4961798498270
2003-01-01	87.6772021630367
2003-04-01	87.8480322444601
2003-07-01	87.6628799930805
2003-10-01	87.9795563049440
2004-01-01	87.5954136128086
2004-04-01	88.2370902362193
2004-07-01	88.7732844867462
2004-10-01	88.1278658427699
2005-01-01	88.0381571508977
2005-04-01	87.8720643214491
2005-07-01	88.1510686866767
2005-10-01	88.4707437643330
2006-01-01	88.9359053435644
2006-04-01	88.6399019188721
2006-07-01	88.9726914059080
2006-10-01	89.0429815700954
2007-01-01	88.9676706423440
2007-04-01	88.4504270796455
2007-07-01	88.6509986890609
2007-10-01	89.3673928199496
2008-01-01	89.3401367869736
2008-04-01	89.4942946522220
2008-07-01	90.2091742754886
2008-10-01	90.3621212606065
2009-01-01	89.8796548345255
2009-04-01	89.4738693374692
2009-07-01	89.6424062927647
2009-10-01	88.4063364133537
2010-01-01	88.7716591970534
2010-04-01	88.7023662984722
2010-07-01	88.7077308471889
2010-10-01	88.4779079369098
2011-01-01	87.9447930141996
2011-04-01	88.0365173788239
2011-07-01	88.4470929234970
2011-10-01	88.2162149509563
2012-01-01	88.1283062549289
2012-04-01	87.9527075340689
2012-07-01	87.7064830276228
2012-10-01	87.2927911476724
2013-01-01	87.6852427893764
2013-04-01	87.7614701289802
2013-07-01	87.4304874722298
2013-10-01	87.1761351607296
2014-01-01	86.7468803788746
2014-04-01	87.1229133810364
2014-07-01	87.3259969585995
2014-10-01	87.0977398046888
2015-01-01	87.1635041556477
2015-04-01	86.7890661445354
2015-07-01	87.1608289293320
2015-10-01	87.4283868206704
2016-01-01	87.6076578756897
2016-04-01	87.4855299463841
2016-07-01	87.2557114956119
2016-10-01	87.0527139408546
2017-01-01	86.3525322669038
2017-04-01	85.7684866752071
2017-07-01	86.4968161596469
2017-10-01	86.0650061374054
2018-01-01	86.2929955843509
2018-04-01	86.6454396946699