Quarter	Percent, Seasonally Adjusted
1970-01-01	68.0366954819964
1970-04-01	68.1940111398921
1970-07-01	68.1287702445014
1970-10-01	67.8608630027902
1971-01-01	68.1834038360501
1971-04-01	67.9678696958735
1971-07-01	67.6377588619548
1971-10-01	67.5057428474380
1972-01-01	67.4015620208184
1972-04-01	67.1393936098918
1972-07-01	67.2827345713464
1972-10-01	67.4993822355065
1973-01-01	68.0641151314203
1973-04-01	67.4955545804579
1973-07-01	67.6519850138512
1973-10-01	67.8040440493752
1974-01-01	67.2705833037950
1974-04-01	67.1615145274322
1974-07-01	66.5674004305736
1974-10-01	66.4155175696946
1975-01-01	66.0241701383023
1975-04-01	66.0546205046932
1975-07-01	66.1341368588276
1975-10-01	66.0385236505836
1976-01-01	66.2167635036687
1976-04-01	65.7943297573220
1976-07-01	66.1765627379246
1976-10-01	66.1718545043980
1977-01-01	66.2913223769637
1977-04-01	66.3886493428221
1977-07-01	66.4635227716955
1977-10-01	66.5692827723756
1978-01-01	66.6019331894137
1978-04-01	66.8700799685407
1978-07-01	66.5955245316899
1978-10-01	66.8024915777153
1979-01-01	66.9568683945249
1979-04-01	67.0622747165499
1979-07-01	67.0880428781242
1979-10-01	67.1321876240132
1980-01-01	67.0128369245592
1980-04-01	67.0597360110078
1980-07-01	67.2828854662859
1980-10-01	67.0594296481573
1981-01-01	67.0592381616709
1981-04-01	67.1098727637008
1981-07-01	67.1507106264540
1981-10-01	67.2410203605154
1982-01-01	67.3840058559682
1982-04-01	67.2664747381491
1982-07-01	67.0899199041305
1982-10-01	67.4873493947806
1983-01-01	67.7445436490833
1983-04-01	67.7673150088041
1983-07-01	67.7499676370790
1983-10-01	67.6183871778360
1984-01-01	67.3513609530543
1984-04-01	67.4832645972780
1984-07-01	67.5851840083881
1984-10-01	67.6663583825103
1985-01-01	67.5384906546347
1985-04-01	67.4080723149042
1985-07-01	67.3423079019431
1985-10-01	67.1584103169795
1986-01-01	67.3878931089867
1986-04-01	67.1815895260382
1986-07-01	67.2548709741427
1986-10-01	67.1033283819233
1987-01-01	66.9442034529340
1987-04-01	66.9972866505186
1987-07-01	67.2296464677342
1987-10-01	67.3366962544684
1988-01-01	67.2979144976220
1988-04-01	67.5110130411134
1988-07-01	67.5086186201865
1988-10-01	67.5604101258535
1989-01-01	67.8198435551360
1989-04-01	68.1186244882946
1989-07-01	68.1811211830503
1989-10-01	68.3088398676041
1990-01-01	68.6150123620748
1990-04-01	68.7117892065020
1990-07-01	68.8566864983022
1990-10-01	69.0405931030665
1991-01-01	69.2747452473859
1991-04-01	69.3721410244038
1991-07-01	69.5083155041226
1991-10-01	69.6772482527773
1992-01-01	69.8114044100221
1992-04-01	69.6443350291096
1992-07-01	69.6233534700720
1992-10-01	69.8950469647203
1993-01-01	69.5416316125414
1993-04-01	69.5482597428181
1993-07-01	69.5828173024826
1993-10-01	69.5989603626296
1994-01-01	69.3465563814596
1994-04-01	69.5123265137690
1994-07-01	69.2676950892731
1994-10-01	69.2499418666530
1995-01-01	69.2645296925004
1995-04-01	69.2256134148276
1995-07-01	69.3001166368236
1995-10-01	69.2175509812196
1996-01-01	69.3159474238661
1996-04-01	69.4883082593406
1996-07-01	69.7640507075874
1996-10-01	69.6955018384979
1997-01-01	70.0362260699275
1997-04-01	70.1210065188502
1997-07-01	70.1151431146508
1997-10-01	69.9883543948336
1998-01-01	69.9225892999053
1998-04-01	69.5928610024814
1998-07-01	69.4541640833864
1998-10-01	69.2771746230180
1999-01-01	69.0868942073178
1999-04-01	68.9883440376989
1999-07-01	69.0191952944706
1999-10-01	68.9908553417464
2000-01-01	68.7589828211632
2000-04-01	69.0222148040780
2000-07-01	69.0101809905591
2000-10-01	69.1657018131095
2001-01-01	69.2599097870290
2001-04-01	68.9716961862969
2001-07-01	68.6427070814776
2001-10-01	68.4840400161748
2002-01-01	68.4208078353269
2002-04-01	68.1661367535485
2002-07-01	68.2822481983716
2002-10-01	68.3856100122936
2003-01-01	68.3290498777010
2003-04-01	68.3343361260973
2003-07-01	68.4732929507810
2003-10-01	68.6996051501629
2004-01-01	68.7035943233064
2004-04-01	68.6658066450739
2004-07-01	68.8942980724710
2004-10-01	68.9968022406485
2005-01-01	69.0932688195840
2005-04-01	69.3200460528222
2005-07-01	69.6067011892211
2005-10-01	69.4682845820741
2006-01-01	69.8228210331429
2006-04-01	69.9871918860018
2006-07-01	70.1098036157396
2006-10-01	70.2201944298422
2007-01-01	70.4374378452522
2007-04-01	70.9254005066209
2007-07-01	70.7957493839570
2007-10-01	70.9270688396179
2008-01-01	70.7722981917352
2008-04-01	70.9474295776221
2008-07-01	70.8438075914972
2008-10-01	70.9107305521458
2009-01-01	70.5254137038576
2009-04-01	70.0284955241789
2009-07-01	70.0601838483587
2009-10-01	70.0800336693405
2010-01-01	70.2569021128553
2010-04-01	70.0782217844628
2010-07-01	70.4023022028353
2010-10-01	70.3964038343434
2011-01-01	70.8262569499380
2011-04-01	71.0725970363479
2011-07-01	70.8099601585572
2011-10-01	70.4630303446332
2012-01-01	70.4017198052619
2012-04-01	70.5631882768848
2012-07-01	70.6912722405542
2012-10-01	70.8264990392684
2013-01-01	71.3439012106138
2013-04-01	71.6403113913889
2013-07-01	71.8748641585775
2013-10-01	72.1737561501435
2014-01-01	72.4964548557538
2014-04-01	72.6894260156330
2014-07-01	72.8532976075009
2014-10-01	73.0050450332228
2015-01-01	73.0891867318027
2015-04-01	73.2679093040231
2015-07-01	73.4612255773602
2015-10-01	73.7567598225257
2016-01-01	74.0762708310699
2016-04-01	74.3043349852489
2016-07-01	74.6229080620918
2016-10-01	74.7811415397422
2017-01-01	74.9608542699229
2017-04-01	75.1702457852641
2017-07-01	75.4412882894092
2017-10-01	75.7362709751799
2018-01-01	76.3501524927344
2018-04-01	76.7014409600600
2018-07-01	76.8570229283474