Quarter	Percent, Seasonally Adjusted
1986-01-01	79.0698853193152
1986-04-01	79.3910570969924
1986-07-01	79.2430821975758
1986-10-01	79.0973109292914
1987-01-01	79.3207087842393
1987-04-01	79.7392686450091
1987-07-01	79.7649288224053
1987-10-01	79.6375909727064
1988-01-01	78.2136071000891
1988-04-01	78.4890789558919
1988-07-01	77.4665350629781
1988-10-01	77.6278823793712
1989-01-01	76.7302623434625
1989-04-01	76.1329571965744
1989-07-01	76.5087159937549
1989-10-01	76.0940957493967
1990-01-01	76.1325423332596
1990-04-01	76.2354889266747
1990-07-01	75.6827801506156
1990-10-01	75.6600529339235
1991-01-01	75.0284951050893
1991-04-01	74.7578914050817
1991-07-01	74.3530763079061
1991-10-01	73.7738658585432
1992-01-01	74.1030579835265
1992-04-01	74.6277095785442
1992-07-01	74.1007863590304
1992-10-01	74.2753432488121
1993-01-01	74.2308422737918
1993-04-01	74.3917334695339
1993-07-01	74.4124508087548
1993-10-01	75.0437354741228
1994-01-01	74.9832329394062
1994-04-01	75.8824912923208
1994-07-01	75.6180425727752
1994-10-01	76.4332585453647
1995-01-01	76.6656078910804
1995-04-01	77.2245291412826
1995-07-01	77.5630107214662
1995-10-01	77.4411844376644
1996-01-01	77.6719038934520
1996-04-01	77.9597507930997
1996-07-01	78.2414661140807
1996-10-01	77.8786830385523
1997-01-01	77.2062733960709
1997-04-01	77.4280625221664
1997-07-01	77.5450263039744
1997-10-01	77.2174159738994
1998-01-01	76.8029067382261
1998-04-01	75.9436210775884
1998-07-01	76.0331993292094
1998-10-01	76.2761214312532
1999-01-01	76.5664715555587
1999-04-01	76.8702827362082
1999-07-01	77.0580131904671
1999-10-01	77.9347507396014
2000-01-01	77.9244166145799
2000-04-01	77.7167441144018
2000-07-01	78.4684021193244
2000-10-01	78.7379232172963
2001-01-01	78.6789565010632
2001-04-01	78.6054043046585
2001-07-01	78.6889037720199
2001-10-01	79.4691574878062
2002-01-01	79.3470500411320
2002-04-01	78.8720492356689
2002-07-01	79.1876339774943
2002-10-01	79.7411958195236
2003-01-01	79.3170752634309
2003-04-01	79.0620289832788
2003-07-01	79.6244498615878
2003-10-01	79.6759086670562
2004-01-01	79.8047141601410
2004-04-01	79.9677834698417
2004-07-01	80.5587976991801
2004-10-01	81.1891689753026
2005-01-01	81.1659961281169
2005-04-01	81.1590944036968
2005-07-01	81.8569381423145
2005-10-01	81.8288632941384
2006-01-01	81.6027912990334
2006-04-01	81.9914883178571
2006-07-01	81.9241992406279
2006-10-01	81.3187817733108
2007-01-01	81.8332263897266
2007-04-01	81.8804617531242
2007-07-01	81.6227985992601
2007-10-01	82.0710472770939
2008-01-01	80.9356007610543
2008-04-01	82.0582703159987
2008-07-01	82.0806834776818
2008-10-01	82.0828545793223
2009-01-01	80.9001535934296
2009-04-01	80.8912972261043
2009-07-01	80.0153026227808
2009-10-01	80.0951219023948
2010-01-01	80.0173269201546
2010-04-01	79.6778808699726
2010-07-01	79.9390568405389
2010-10-01	79.8171730278106
2011-01-01	80.4135518801028
2011-04-01	80.4777557749844
2011-07-01	80.2081801307119
2011-10-01	80.4770764363836
2012-01-01	80.2094834379643
2012-04-01	79.6181755463179
2012-07-01	79.4068057765741
2012-10-01	79.5307202070618
2013-01-01	80.2825704028230
2013-04-01	80.2078293593390
2013-07-01	81.2382178752642
2013-10-01	81.5506313594540
2014-01-01	81.7548426555876
2014-04-01	81.5272411010259
2014-07-01	81.8908765490389
2014-10-01	81.8341560921821
2015-01-01	82.2156721111292
2015-04-01	81.6589818385404
2015-07-01	81.1134602491828
2015-10-01	81.6773300572686
2016-01-01	82.0770235707372
2016-04-01	82.9593415048334
2016-07-01	83.4611678127974
2016-10-01	83.9032751460749
2017-01-01	83.8281157220411
2017-04-01	83.6790099205976
2017-07-01	84.4525498794196
2017-10-01	84.4832534371784
2018-01-01	84.5717863077006
2018-04-01	84.5419970617178
2018-07-01	84.8299010950985