Quarter	Percent, Seasonally Adjusted
1978-01-01	63.9606997536180
1978-04-01	64.1707648740385
1978-07-01	64.1185150085827
1978-10-01	64.2380939147564
1979-01-01	64.2761412504088
1979-04-01	64.3967520607960
1979-07-01	64.4212865561060
1979-10-01	64.4013679443350
1980-01-01	64.3398988792420
1980-04-01	64.3860258054098
1980-07-01	64.4653214077249
1980-10-01	64.3139541696433
1981-01-01	64.3334834823079
1981-04-01	64.2759921746588
1981-07-01	64.3120815155797
1981-10-01	64.3169668266380
1982-01-01	64.3968469301882
1982-04-01	64.3370270357041
1982-07-01	64.2085940273759
1982-10-01	64.5168050598229
1983-01-01	64.8311169036260
1983-04-01	64.8236217254176
1983-07-01	64.7348396213758
1983-10-01	64.6689020128361
1984-01-01	64.4940372382452
1984-04-01	64.5446958997184
1984-07-01	64.5666755388217
1984-10-01	64.5953219355674
1985-01-01	64.5364925702761
1985-04-01	64.3981556012746
1985-07-01	64.3189532622281
1985-10-01	64.1470041563666
1986-01-01	64.2090899218472
1986-04-01	64.1064974792580
1986-07-01	64.0932262623913
1986-10-01	64.0034778779732
1987-01-01	63.8923633596077
1987-04-01	63.9008252719939
1987-07-01	64.0973379255398
1987-10-01	64.1442332517125
1988-01-01	64.1530423960801
1988-04-01	64.3318674047506
1988-07-01	64.3510477172297
1988-10-01	64.3970804666514
1989-01-01	64.5543913862472
1989-04-01	64.8121149793228
1989-07-01	64.9333985844818
1989-10-01	65.0937655258018
1990-01-01	65.2657808751088
1990-04-01	65.4078820335329
1990-07-01	65.5148859884607
1990-10-01	65.6856222799232
1991-01-01	65.8878779044581
1991-04-01	66.0093443271731
1991-07-01	66.0909983435070
1991-10-01	66.1965958980023
1992-01-01	66.2803428972284
1992-04-01	66.1872200517022
1992-07-01	66.1037280596162
1992-10-01	66.1906182827803
1993-01-01	65.9508650634294
1993-04-01	65.8878923449846
1993-07-01	65.8097669469768
1993-10-01	65.7797042577802
1994-01-01	65.5730077886460
1994-04-01	65.5927104368585
1994-07-01	65.3610382875508
1994-10-01	65.2906170836654
1995-01-01	65.2523327731814
1995-04-01	65.1654481971440
1995-07-01	65.2436456699550
1995-10-01	65.0614188703634
1996-01-01	65.0794146400429
1996-04-01	65.2065951514746
1996-07-01	65.4463497540045
1996-10-01	65.4217165520901
1997-01-01	65.6399706929054
1997-04-01	65.6719215099223
1997-07-01	65.5849026485659
1997-10-01	65.4359303862098
1998-01-01	65.3470863460958
1998-04-01	64.9920795275715
1998-07-01	64.7250580819164
1998-10-01	64.5547919331580
1999-01-01	64.4081735616778
1999-04-01	64.2324832124861
1999-07-01	64.1821802863376
1999-10-01	64.1763437483189
2000-01-01	63.9802447362545
2000-04-01	63.9609321645343
2000-07-01	64.0011955531616
2000-10-01	64.1244897054904
2001-01-01	64.0166690845791
2001-04-01	63.7020341139073
2001-07-01	63.4549123571323
2001-10-01	63.2367522814436
2002-01-01	63.1016971848481
2002-04-01	62.8091957103240
2002-07-01	62.8699994382736
2002-10-01	62.8228091851860
2003-01-01	62.7620881056962
2003-04-01	62.7694019675580
2003-07-01	62.8291291645666
2003-10-01	62.8888887515372
2004-01-01	62.9578978166437
2004-04-01	63.0200226202435
2004-07-01	63.0898869651737
2004-10-01	63.1846333362285
2005-01-01	63.2913707001690
2005-04-01	63.4345812229253
2005-07-01	63.6402204337675
2005-10-01	63.5852385775393
2006-01-01	63.7815041323134
2006-04-01	63.9039803833603
2006-07-01	64.0430781239552
2006-10-01	64.1687549493918
2007-01-01	64.2387222830618
2007-04-01	64.5746566316773
2007-07-01	64.4994445278336
2007-10-01	64.5380895844002
2008-01-01	64.5022536239681
2008-04-01	64.5485826278394
2008-07-01	64.4043805992443
2008-10-01	64.4037797048758
2009-01-01	64.1183434593289
2009-04-01	63.6755003990908
2009-07-01	63.4776063935915
2009-10-01	63.5275001069114
2010-01-01	63.7798559182568
2010-04-01	63.6172178236127
2010-07-01	63.7951313850997
2010-10-01	63.8940406318827
2011-01-01	64.0798632178681
2011-04-01	63.8543864911657
2011-07-01	63.8736528604644
2011-10-01	64.0555811063506
2012-01-01	63.9344350703934
2012-04-01	64.0504064148535
2012-07-01	64.1820642062500
2012-10-01	64.3105544854644
2013-01-01	64.6661928159363
2013-04-01	64.8258143093115
2013-07-01	64.9686072405391
2013-10-01	65.3709708993448
2014-01-01	65.4073426551959
2014-04-01	65.5340203335392
2014-07-01	65.6488156384947
2014-10-01	65.9251445187309
2015-01-01	65.9365986085887
2015-04-01	66.0543246347918
2015-07-01	66.2554577661924
2015-10-01	66.4716006820036
2016-01-01	66.8019083732701
2016-04-01	66.9167602495065
2016-07-01	67.3319685185100
2016-10-01	67.5003534284343
2017-01-01	67.6167913873414
2017-04-01	67.9320862219041
2017-07-01	68.2429505803470
2017-10-01	68.5341509169770
2018-01-01	69.1934409548334
2018-04-01	69.5371936711233
2018-07-01	69.7707956270922