Quarter	Percent, Seasonally Adjusted
1986-01-01	67.9377374010906
1986-04-01	67.2139205020239
1986-07-01	67.6373844925497
1986-10-01	64.8370570017878
1987-01-01	65.5725157935726
1987-04-01	64.0391960780508
1987-07-01	64.7296466371691
1987-10-01	62.6601999170772
1988-01-01	63.3759267863214
1988-04-01	60.3556562228995
1988-07-01	58.5153032049649
1988-10-01	58.2841168066469
1989-01-01	56.7017842555340
1989-04-01	56.7423861358942
1989-07-01	56.0069916551258
1989-10-01	56.6220275503328
1990-01-01	57.1279487535194
1990-04-01	56.5404302655794
1990-07-01	56.5693290506092
1990-10-01	56.2531015504438
1991-01-01	56.3038454107045
1991-04-01	56.4116482965238
1991-07-01	56.5770532406638
1991-10-01	56.3771426605564
1992-01-01	56.7161738871883
1992-04-01	56.2612855072891
1992-07-01	56.0512485345258
1992-10-01	56.5656643018661
1993-01-01	57.3100196765596
1993-04-01	59.7972413293326
1993-07-01	59.9199058097287
1993-10-01	60.6774927511119
1994-01-01	61.2120267000092
1994-04-01	62.3378786856029
1994-07-01	62.6214404336805
1994-10-01	63.8287450370966
1995-01-01	64.3013049284997
1995-04-01	64.1262662424077
1995-07-01	65.7086371168977
1995-10-01	66.0298964583100
1996-01-01	68.6381578940053
1996-04-01	68.2163825434550
1996-07-01	68.5550039657036
1996-10-01	69.1806481095813
1997-01-01	68.4968531620882
1997-04-01	70.3298840910424
1997-07-01	68.6229650234463
1997-10-01	68.9657879253680
1998-01-01	69.6919283631254
1998-04-01	70.6226282442686
1998-07-01	70.5409521373460
1998-10-01	70.3121694884140
1999-01-01	72.1803338442929
1999-04-01	70.5389318295587
1999-07-01	71.7567585278778
1999-10-01	70.5355701971915
2000-01-01	70.8192303515508
2000-04-01	71.0040459738582
2000-07-01	72.0167875669111
2000-10-01	73.6633593592812
2001-01-01	73.6673258411183
2001-04-01	73.4064035712426
2001-07-01	73.7979162319767
2001-10-01	74.2537795288351
2002-01-01	76.9100339715446
2002-04-01	77.3489093218788
2002-07-01	76.9541177772996
2002-10-01	76.9340525568807
2003-01-01	75.3240065550676
2003-04-01	76.0070192412847
2003-07-01	75.8322112887722
2003-10-01	76.7608336312904
2004-01-01	75.9863906231569
2004-04-01	77.8843444255002
2004-07-01	78.3555441102301
2004-10-01	79.8047354969839
2005-01-01	79.2756934640762
2005-04-01	79.4121852265869
2005-07-01	79.5547030588302
2005-10-01	79.9016084617683
2006-01-01	80.7776259772966
2006-04-01	81.7246790139040
2006-07-01	81.2743649721572
2006-10-01	80.5432052971860
2007-01-01	82.6551171009380
2007-04-01	81.9902694305001
2007-07-01	80.8906022812257
2007-10-01	81.9882235636690
2008-01-01	81.6407315898046
2008-04-01	81.6474503347621
2008-07-01	81.2609172492514
2008-10-01	82.1517584559383
2009-01-01	82.7996272117710
2009-04-01	82.8472805256891
2009-07-01	82.3691964105991
2009-10-01	82.1902229245732
2010-01-01	81.6470529089100
2010-04-01	82.8199094312303
2010-07-01	83.5259915759344
2010-10-01	82.0229065407411
2011-01-01	82.1794218575962
2011-04-01	81.9631229925037
2011-07-01	82.7148690540913
2011-10-01	83.4250866228418
2012-01-01	83.6274349878009
2012-04-01	83.0132163362650
2012-07-01	82.3152012687313
2012-10-01	82.4106477413965
2013-01-01	81.7356770120566
2013-04-01	82.7534295557035
2013-07-01	82.3712990147352
2013-10-01	82.2479899821130
2014-01-01	83.5518695771107
2014-04-01	83.8034812911123
2014-07-01	82.7133424203366
2014-10-01	83.2501105623530
2015-01-01	84.1754484930517
2015-04-01	83.1782679127469
2015-07-01	82.6697182194426
2015-10-01	82.8246593337306
2016-01-01	83.0466115174706
2016-04-01	84.4052574902265
2016-07-01	84.7842780531134
2016-10-01	84.9990660855184
2017-01-01	86.8396244019442
2017-04-01	85.9565657287098
2017-07-01	87.0122229615159
2017-10-01	87.6440225768004
2018-01-01	86.7554756543961
2018-04-01	87.7465617862281
2018-07-01	86.9618570788586