Quarter	Percent, Seasonally Adjusted
1999-01-01	83.6817401986008
1999-04-01	83.5522755071954
1999-07-01	84.9574398853752
1999-10-01	84.1360500901345
2000-01-01	84.1772501097426
2000-04-01	84.3273466086399
2000-07-01	83.4077135704343
2000-10-01	84.1880004779826
2001-01-01	84.4650229234510
2001-04-01	83.5757333879320
2001-07-01	84.8959408949376
2001-10-01	84.6869448777858
2002-01-01	84.2155966139459
2002-04-01	84.4071632137989
2002-07-01	82.9937732053136
2002-10-01	83.0360782472495
2003-01-01	83.2816366647754
2003-04-01	83.5877718143075
2003-07-01	83.8667498128125
2003-10-01	84.1929541776772
2004-01-01	83.4951644788295
2004-04-01	84.9446953058773
2004-07-01	85.9281174875683
2004-10-01	84.6309373772018
2005-01-01	84.4104101913456
2005-04-01	84.1705617647664
2005-07-01	84.4323747004612
2005-10-01	84.8611861429462
2006-01-01	85.7201070351354
2006-04-01	85.1385598855838
2006-07-01	85.4596250055600
2006-10-01	85.4129850967088
2007-01-01	85.4587146894775
2007-04-01	84.5137560594982
2007-07-01	85.1568399083577
2007-10-01	86.2082290314801
2008-01-01	85.8754593321602
2008-04-01	85.5087983366263
2008-07-01	86.5482465729263
2008-10-01	87.6244892848130
2009-01-01	87.0145842914019
2009-04-01	86.8538707766645
2009-07-01	87.0897051318451
2009-10-01	84.9803038145945
2010-01-01	85.1788108192876
2010-04-01	85.3393498933977
2010-07-01	85.7346499496301
2010-10-01	84.8084041574240
2011-01-01	84.2058113719491
2011-04-01	84.3919024423338
2011-07-01	85.2559920316558
2011-10-01	85.1347898719053
2012-01-01	85.2109879620790
2012-04-01	85.1780443067033
2012-07-01	84.8662074145401
2012-10-01	84.1590978758073
2013-01-01	84.5642121109109
2013-04-01	85.4031679889633
2013-07-01	84.8372789132828
2013-10-01	84.4920971469782
2014-01-01	83.6729239736520
2014-04-01	83.9804988452170
2014-07-01	83.7551399798649
2014-10-01	83.7545599367563
2015-01-01	83.6209049914555
2015-04-01	82.5236185084349
2015-07-01	83.5558297713046
2015-10-01	83.8863110683396
2016-01-01	84.0730137467699
2016-04-01	83.8279331416249
2016-07-01	83.8273542279126
2016-10-01	83.6059147615012
2017-01-01	82.7222331882551
2017-04-01	82.1376662082062
2017-07-01	83.4310896523955
2017-10-01	82.3856675138009
2018-01-01	83.1507066887988
2018-04-01	83.3736842115311