Quarter	Percent, Seasonally Adjusted
1978-04-01	70.4787436071288
1978-07-01	70.3676583238076
1978-10-01	70.5765692537437
1979-01-01	70.5952805332515
1979-04-01	70.6257133824409
1979-07-01	70.6213383269024
1979-10-01	71.0444883910305
1980-01-01	71.1773370338569
1980-04-01	70.9910830950484
1980-07-01	71.3570918693076
1980-10-01	71.2453183825290
1981-01-01	71.3321189233316
1981-04-01	71.4753912376891
1981-07-01	71.4719041394545
1981-10-01	71.2965255189143
1982-01-01	71.2721158533892
1982-04-01	70.8887313806386
1982-07-01	70.5894272332563
1982-10-01	69.8191030938163
1983-01-01	69.2291360907052
1983-04-01	68.5793056345840
1983-07-01	68.7311864522419
1983-10-01	69.0068415311507
1984-01-01	69.5089895891425
1984-04-01	69.9676691828008
1984-07-01	70.1337153663186
1984-10-01	70.5051253145324
1985-01-01	70.7305602719454
1985-04-01	70.4626570831724
1985-07-01	71.1760148684751
1985-10-01	71.8877846102862
1986-01-01	72.3062716900932
1986-04-01	72.7218361670502
1986-07-01	72.7757077256216
1986-10-01	72.8944208472250
1987-01-01	72.7578831084614
1987-04-01	72.8544142600902
1987-07-01	73.0890832172650
1987-10-01	73.0973738565877
1988-01-01	73.8729996840515
1988-04-01	74.1384390385210
1988-07-01	74.1670351208054
1988-10-01	74.6601869577291
1989-01-01	74.6343581572159
1989-04-01	75.3900543875459
1989-07-01	75.7645624934936
1989-10-01	76.3872827888972
1990-01-01	76.3340242774456
1990-04-01	76.5205690475015
1990-07-01	75.9282741982543
1990-10-01	75.3617416577756
1991-01-01	74.8722375122665
1991-04-01	74.6550396769755
1991-07-01	74.0349835237208
1991-10-01	73.5141325998906
1992-01-01	73.7010026932556
1992-04-01	73.3687792438478
1992-07-01	73.2230617020548
1992-10-01	72.8712316198470
1993-01-01	72.8414405416759
1993-04-01	72.6555606674218
1993-07-01	72.7704971839924
1993-10-01	73.1293104839407
1994-01-01	73.1365811858884
1994-04-01	73.4339623797847
1994-07-01	73.9443340560994
1994-10-01	73.9102405989517
1995-01-01	74.4090138451292
1995-04-01	75.0824456187898
1995-07-01	75.2432824686746
1995-10-01	75.4507893560998
1996-01-01	75.3810995190037
1996-04-01	74.9207414819894
1996-07-01	74.8531693003625
1996-10-01	74.8091985983136
1997-01-01	74.9412369937165
1997-04-01	74.8034261166028
1997-07-01	74.8712483841414
1997-10-01	75.0090083863714
1998-01-01	75.0028774086673
1998-04-01	75.1185537743776
1998-07-01	75.1545605736195
1998-10-01	75.2860977350475
1999-01-01	75.3607915318441
1999-04-01	75.4013505228754
1999-07-01	75.4358828933127
1999-10-01	75.7722119672794
2000-01-01	75.6703703707690
2000-04-01	76.2117207492272
2000-07-01	76.7332305201391
2000-10-01	76.3011106290310
2001-01-01	76.1975244523489
2001-04-01	76.4737781838047
2001-07-01	76.2902830976408
2001-10-01	76.1618941777433
2002-01-01	76.3759852355400
2002-04-01	76.5009308231933
2002-07-01	76.8526664843525
2002-10-01	77.1763379544892
2003-01-01	77.5295479662022
2003-04-01	77.2458312752961
2003-07-01	77.1282117074844
2003-10-01	77.1968648965389
2004-01-01	77.2011419574716
2004-04-01	77.2421059445581
2004-07-01	77.3709610763487
2004-10-01	77.9880958519257
2005-01-01	78.4665962960022
2005-04-01	78.7863417175871
2005-07-01	78.9442656930640
2005-10-01	78.8642673771707
2006-01-01	78.7133746875176
2006-04-01	79.0683568482494
2006-07-01	79.4630353061033
2006-10-01	79.4725985119262
2007-01-01	79.5319744578647
2007-04-01	79.7398384222472
2007-07-01	80.1454018818327
2007-10-01	80.2948042925606
2008-01-01	80.3939787829716
2008-04-01	80.3263668380676
2008-07-01	80.2388428043213
2008-10-01	80.2900359952455
2009-01-01	79.5771623274443
2009-04-01	79.2213877088584
2009-07-01	79.0069873374805
2009-10-01	78.8004677100408
2010-01-01	79.0720751282547
2010-04-01	79.1482773460031
2010-07-01	79.7128985967161
2010-10-01	79.9195500139913
2011-01-01	79.9719777588099
2011-04-01	79.9025504570289
2011-07-01	79.7076725032107
2011-10-01	79.6307884043977
2012-01-01	79.5094224116363
2012-04-01	79.4703356516234
2012-07-01	79.5332543132176
2012-10-01	79.2903502041824
2013-01-01	79.3701200752017
2013-04-01	79.1640193487324
2013-07-01	79.1165404527556
2013-10-01	78.9234252825469
2014-01-01	78.9063218571156
2014-04-01	78.9204795992498
2014-07-01	78.6771630740071
2014-10-01	78.6827609262476
2015-01-01	79.2081410640862
2015-04-01	79.3241831351634
2015-07-01	79.2397360670174
2015-10-01	79.4476152072830
2016-01-01	79.5814348995654
2016-04-01	79.6569180854932
2016-07-01	79.7107673182584
2016-10-01	79.7868231232670
2017-01-01	79.6293567406184
2017-04-01	80.1873613533160
2017-07-01	80.2811299837444
2017-10-01	80.7978937484633
2018-01-01	80.8823905239101
2018-04-01	80.9254316975176
2018-07-01	80.8461886884053