Quarter	Percent, Seasonally Adjusted
1970-01-01	85.6759890653720
1970-04-01	85.2558259071703
1970-07-01	85.1521330613132
1970-10-01	84.3007493184516
1971-01-01	86.0088133524819
1971-04-01	85.9510412495891
1971-07-01	85.1197675335618
1971-10-01	84.5928275019528
1972-01-01	84.2328385707056
1972-04-01	85.7211074730986
1972-07-01	84.8517376061648
1972-10-01	83.6191651990254
1973-01-01	84.9172723450061
1973-04-01	84.6084419938769
1973-07-01	85.1102515738165
1973-10-01	86.1870151347184
1974-01-01	85.4135525085854
1974-04-01	84.1580646703198
1974-07-01	84.8125921594830
1974-10-01	84.3849533131917
1975-01-01	84.1721771736815
1975-04-01	83.4881525229365
1975-07-01	83.7078787344895
1975-10-01	83.4655764681118
1976-01-01	83.6452146035564
1976-04-01	83.1867380640373
1976-07-01	82.9553305729914
1976-10-01	82.8882339066324
1977-01-01	81.7650336177099
1977-04-01	81.9607963186525
1977-07-01	81.6247509514213
1977-10-01	82.0599445017901
1978-01-01	81.7704473054014
1978-04-01	81.5881693986808
1978-07-01	81.3471209733174
1978-10-01	81.8214995837422
1979-01-01	81.5784963229531
1979-04-01	82.3081107177466
1979-07-01	81.7338335970876
1979-10-01	82.0239343287018
1980-01-01	82.3119111872424
1980-04-01	83.1273482771652
1980-07-01	82.1974008666209
1980-10-01	82.0906806654060
1981-01-01	82.2051643115445
1981-04-01	81.8755415963381
1981-07-01	81.6976661580950
1981-10-01	81.0785185988456
1982-01-01	82.0826820104379
1982-04-01	81.0097533555365
1982-07-01	81.8025744892906
1982-10-01	80.8026935768654
1983-01-01	80.5876942520718
1983-04-01	81.5255585159366
1983-07-01	80.7186348108272
1983-10-01	80.5018910217216
1984-01-01	80.5594662886960
1984-04-01	79.6216321416516
1984-07-01	79.5473992864104
1984-10-01	79.4974526128064
1985-01-01	79.7285753268868
1985-04-01	79.6786208203841
1985-07-01	79.2302325011613
1985-10-01	78.9094001208371
1986-01-01	78.9820525034168
1986-04-01	78.9248376784766
1986-07-01	79.0692133559951
1986-10-01	78.7691340368510
1987-01-01	78.3067488213110
1987-04-01	78.6279355664053
1987-07-01	78.4135047922952
1987-10-01	78.8283406071916
1988-01-01	78.8725009048853
1988-04-01	78.7115708419705
1988-07-01	78.9848076594994
1988-10-01	78.7183591516031
1989-01-01	79.1392545049814
1989-04-01	79.3120553893641
1989-07-01	79.9801992439324
1989-10-01	80.3351787862037
1990-01-01	80.3086397715398
1990-04-01	80.6053304286300
1990-07-01	80.8339257444301
1990-10-01	81.3845409804186
1991-01-01	81.8794679711698
1991-04-01	82.0469285656703
1991-07-01	82.0460300075895
1991-10-01	82.7375291248667
1992-01-01	82.6320981194751
1992-04-01	82.0556420452626
1992-07-01	81.9153280345034
1992-10-01	82.7667275247064
1993-01-01	82.7052211343830
1993-04-01	81.8224940981726
1993-07-01	82.4377277212586
1993-10-01	81.2447267074792
1994-01-01	81.3149782980097
1994-04-01	81.4358427787124
1994-07-01	81.5172427108408
1994-10-01	80.7167527932494
1995-01-01	80.5679028119607
1995-04-01	81.0582147222574
1995-07-01	80.9986082563297
1995-10-01	81.2433470863111
1996-01-01	80.1139648363676
1996-04-01	80.4756229441016
1996-07-01	80.9597791688679
1996-10-01	81.4952980227188
1997-01-01	80.9481638625640
1997-04-01	81.6645558220442
1997-07-01	80.6536397771209
1997-10-01	80.2662307537353
1998-01-01	80.0795258438263
1998-04-01	80.1111937357528
1998-07-01	79.3630861311103
1998-10-01	79.5614571173072
1999-01-01	80.3350866536744
1999-04-01	79.3380425062253
1999-07-01	79.1674079454021
1999-10-01	79.1232763470941
2000-01-01	78.5531726972363
2000-04-01	78.1823223053319
2000-07-01	78.7388733872126
2000-10-01	78.5559849307404
2001-01-01	78.4386042507679
2001-04-01	77.6278774663713
2001-07-01	77.4019199571466
2001-10-01	76.7934165634708
2002-01-01	77.6047741355411
2002-04-01	76.8459608448246
2002-07-01	76.4743941194701
2002-10-01	76.9524483165596
2003-01-01	76.9449154004986
2003-04-01	77.0783661815423
2003-07-01	77.5747360074141
2003-10-01	78.1394587023660
2004-01-01	77.8982264470918
2004-04-01	78.1911569488153
2004-07-01	78.2096904590444
2004-10-01	78.6631638934344
2005-01-01	78.6585599745565
2005-04-01	78.8324412910882
2005-07-01	79.4748450775288
2005-10-01	78.8280680309902
2006-01-01	79.3337049548774
2006-04-01	80.3666846319096
2006-07-01	80.3857727120221
2006-10-01	80.0858672125761
2007-01-01	81.3458687475086
2007-04-01	81.4174028854601
2007-07-01	81.7956070871447
2007-10-01	81.6108952672275
2008-01-01	81.3984395391914
2008-04-01	81.4302767809919
2008-07-01	81.4790667096395
2008-10-01	81.5530077104202
2009-01-01	80.9736915818501
2009-04-01	79.8602244349230
2009-07-01	79.5296896450401
2009-10-01	79.5033091968949
2010-01-01	79.5081870610852
2010-04-01	79.2180572670611
2010-07-01	78.9040848744207
2010-10-01	78.7432519493356
2011-01-01	79.2114383528014
2011-04-01	79.5743873545469
2011-07-01	78.8282799941411
2011-10-01	79.3176037826453
2012-01-01	78.5240621371790
2012-04-01	78.7392890850631
2012-07-01	78.8891725730352
2012-10-01	79.3012832775251
2013-01-01	79.6134869243408
2013-04-01	79.5019681369776
2013-07-01	79.8179210992338
2013-10-01	80.5445902413547
2014-01-01	81.4305515809172
2014-04-01	81.2727307208233
2014-07-01	81.7919441999589
2014-10-01	81.8603181637807
2015-01-01	82.3478772449654
2015-04-01	82.0008835390897
2015-07-01	83.0616450693306
2015-10-01	82.7642011222556
2016-01-01	82.8867444400371
2016-04-01	83.5955831652153
2016-07-01	83.9438815819237
2016-10-01	83.9722897298081
2017-01-01	84.4957306877535
2017-04-01	84.6039729883278
2017-07-01	85.4625761929830
2017-10-01	85.6713774129690
2018-01-01	86.0843684212980
2018-04-01	86.6976042199507
2018-07-01	85.9374722530821