Quarter	Percent, Seasonally Adjusted
1986-01-01	81.3756821363237
1986-04-01	81.8302579023805
1986-07-01	81.7156255661487
1986-10-01	81.5413300551332
1987-01-01	81.7072648456143
1987-04-01	82.0721716431845
1987-07-01	82.2532978367214
1987-10-01	82.0918354930531
1988-01-01	81.1148555336185
1988-04-01	81.6228231291834
1988-07-01	81.4038581796868
1988-10-01	81.4306557314858
1989-01-01	80.9470426620697
1989-04-01	80.6241125319134
1989-07-01	80.9084671718017
1989-10-01	80.5615115797514
1990-01-01	80.6860737611714
1990-04-01	80.9046732481906
1990-07-01	80.8139409092116
1990-10-01	81.3687835537582
1991-01-01	81.4630011497347
1991-04-01	81.5693383909843
1991-07-01	81.4488514344066
1991-10-01	80.8890092287007
1992-01-01	81.2541757779929
1992-04-01	81.5483202652123
1992-07-01	81.0053075501373
1992-10-01	81.2258225216849
1993-01-01	80.8118838389029
1993-04-01	81.0014548394310
1993-07-01	80.8457738060621
1993-10-01	81.2256505709100
1994-01-01	81.1436606350868
1994-04-01	81.3083306424360
1994-07-01	81.0098558343043
1994-10-01	81.4799009158436
1995-01-01	81.2984816383325
1995-04-01	81.5371086063330
1995-07-01	81.6497541775368
1995-10-01	81.4581175706676
1996-01-01	81.8460725877136
1996-04-01	82.0804432435642
1996-07-01	82.5387526574704
1996-10-01	81.9445578887592
1997-01-01	81.7125065982740
1997-04-01	81.7908051484106
1997-07-01	82.1538459651279
1997-10-01	81.6984826000001
1998-01-01	81.6808874054309
1998-04-01	81.2712672659536
1998-07-01	81.1911872390519
1998-10-01	81.6590535015625
1999-01-01	81.5635380867096
1999-04-01	81.7222238222186
1999-07-01	81.5155534001717
1999-10-01	82.1928545782607
2000-01-01	82.0104846965295
2000-04-01	81.6706254457173
2000-07-01	82.2929792526325
2000-10-01	82.1719416707956
2001-01-01	82.1609537779692
2001-04-01	82.0571711140316
2001-07-01	82.1309822113072
2001-10-01	83.0065602906195
2002-01-01	82.9284427064888
2002-04-01	82.2973299428755
2002-07-01	82.7268861925961
2002-10-01	82.8197795026633
2003-01-01	82.4164585088126
2003-04-01	82.0828198658316
2003-07-01	82.6277245939578
2003-10-01	82.4859803728019
2004-01-01	82.6767649617156
2004-04-01	82.3464261056583
2004-07-01	82.9073112297862
2004-10-01	83.4576200880269
2005-01-01	83.5537877704244
2005-04-01	83.3408184597455
2005-07-01	84.1833507267694
2005-10-01	84.2521781571475
2006-01-01	84.0670021260276
2006-04-01	84.1390946750622
2006-07-01	84.1984483590772
2006-10-01	83.5379286694001
2007-01-01	84.0470815395216
2007-04-01	84.0370982029950
2007-07-01	83.6680672054219
2007-10-01	84.1511845844421
2008-01-01	83.2026554610053
2008-04-01	84.2900077911367
2008-07-01	84.5518076544510
2008-10-01	84.7377416309445
2009-01-01	83.9993727937328
2009-04-01	84.2537651751694
2009-07-01	83.7570517222560
2009-10-01	84.0487305458318
2010-01-01	83.8954700275850
2010-04-01	83.6748853143814
2010-07-01	83.7033180611044
2010-10-01	83.6570651533401
2011-01-01	84.1673196871538
2011-04-01	84.2145049572636
2011-07-01	84.2384707216529
2011-10-01	84.3739444500163
2012-01-01	84.4071608274667
2012-04-01	83.8376170865962
2012-07-01	83.7823964958422
2012-10-01	83.3184982575709
2013-01-01	84.0851006368626
2013-04-01	84.0598510234327
2013-07-01	84.8879308312308
2013-10-01	85.1382851936205
2014-01-01	85.3334138304662
2014-04-01	84.8750478516698
2014-07-01	85.6484798035642
2014-10-01	85.4879980078793
2015-01-01	85.7359771577910
2015-04-01	85.3846706868279
2015-07-01	84.6109763448784
2015-10-01	84.8963821046549
2016-01-01	85.4344289564927
2016-04-01	86.2734166496691
2016-07-01	86.7049577171880
2016-10-01	87.4511567450922
2017-01-01	87.1909078604069
2017-04-01	86.7398751795797
2017-07-01	87.4384805889220
2017-10-01	87.3681576047603
2018-01-01	87.4235453299000
2018-04-01	87.5150088002896
2018-07-01	87.6731673722958