Quarter	Percent, Seasonally Adjusted
1970-01-01	46.9595604529670
1970-04-01	46.6975241142974
1970-07-01	46.1985872335994
1970-10-01	46.0596366941599
1971-01-01	46.2330125511355
1971-04-01	46.3380727124682
1971-07-01	47.2302128619055
1971-10-01	48.2119247217840
1972-01-01	48.3537546453243
1972-04-01	49.7353197256678
1972-07-01	49.9809976042257
1972-10-01	48.9039340859942
1973-01-01	48.5273114619757
1973-04-01	49.9492758565726
1973-07-01	50.2357804476882
1973-10-01	50.8903711136168
1974-01-01	52.5289550251050
1974-04-01	52.4581291747145
1974-07-01	53.1422871084356
1974-10-01	53.2832844356511
1975-01-01	53.9278249921325
1975-04-01	54.0422666590352
1975-07-01	54.4000649569206
1975-10-01	54.8326597182960
1976-01-01	54.8588799839648
1976-04-01	56.0229672924732
1976-07-01	55.8334800271108
1976-10-01	55.7553026881344
1977-01-01	55.2539307487783
1977-04-01	54.9512929761606
1977-07-01	55.5663575054509
1977-10-01	55.3704930791207
1978-01-01	55.2802601778177
1978-04-01	55.0405943173828
1978-07-01	55.4415910750274
1978-10-01	55.5997516457761
1979-01-01	55.2754387425729
1979-04-01	55.6966254460081
1979-07-01	55.6342435898084
1979-10-01	56.2305304232970
1980-01-01	56.8802366073093
1980-04-01	56.3564868709376
1980-07-01	55.1738122434433
1980-10-01	55.6471421645432
1981-01-01	55.8262732395632
1981-04-01	55.6555300915016
1981-07-01	56.2580336875463
1981-10-01	56.5278236770440
1982-01-01	56.5560220826925
1982-04-01	56.6574820355775
1982-07-01	56.5082846084127
1982-10-01	55.7550748376100
1983-01-01	55.4547558858413
1983-04-01	55.1946834250974
1983-07-01	55.8352133757869
1983-10-01	55.7452166799395
1984-01-01	56.1753555856791
1984-04-01	55.5528452650173
1984-07-01	55.1911352109444
1984-10-01	55.6249293844524
1985-01-01	55.8619981284987
1985-04-01	56.8708834272038
1985-07-01	56.7675292037112
1985-10-01	56.4472487562732
1986-01-01	55.6993683494731
1986-04-01	56.4257675993797
1986-07-01	56.2200449848738
1986-10-01	56.4928502547589
1987-01-01	56.7743274703155
1987-04-01	56.7313289272586
1987-07-01	56.8408487839602
1987-10-01	56.6573132539024
1988-01-01	56.7388639337841
1988-04-01	56.7518792261731
1988-07-01	56.6995080429176
1988-10-01	56.4945874829499
1989-01-01	56.0471199528912
1989-04-01	55.7458300461031
1989-07-01	55.7555753836855
1989-10-01	55.8109476831484
1990-01-01	55.6463322672109
1990-04-01	55.2759170409885
1990-07-01	54.8570629115405
1990-10-01	54.5866842515259
1991-01-01	54.6968110284565
1991-04-01	53.9993509735571
1991-07-01	53.9579522971464
1991-10-01	53.5504896919059
1992-01-01	53.3591587607630
1992-04-01	53.3045154830119
1992-07-01	53.6075697574884
1992-10-01	53.6542818534140
1993-01-01	53.7130322128761
1993-04-01	53.3529838872975
1993-07-01	53.0895948682042
1993-10-01	52.9003924618956
1994-01-01	52.8013586139364
1994-04-01	52.8679404862399
1994-07-01	52.8057663368228
1994-10-01	52.5334362145008
1995-01-01	52.4591283266498
1995-04-01	53.0037867571027
1995-07-01	52.8099549777405
1995-10-01	52.3153004299240
1996-01-01	52.3254724874924
1996-04-01	52.1015599082696
1996-07-01	52.1597299315882
1996-10-01	52.9117055217231
1997-01-01	52.6719545938150
1997-04-01	52.5930140980118
1997-07-01	52.0114174082754
1997-10-01	52.0977773124548
1998-01-01	52.0372930639677
1998-04-01	52.1215277211576
1998-07-01	52.3296210265659
1998-10-01	52.5345500316687
1999-01-01	52.7263088153422
1999-04-01	52.7468327976772
1999-07-01	53.3159665203752
1999-10-01	53.8113017375870
2000-01-01	53.4358849318401
2000-04-01	53.5600514112323
2000-07-01	53.4675862791529
2000-10-01	52.4936303013076
2001-01-01	52.8186575880250
2001-04-01	53.4723275577807
2001-07-01	53.9226740396788
2001-10-01	54.1483141454795
2002-01-01	54.9200240875400
2002-04-01	54.8870894220370
2002-07-01	55.0026274661358
2002-10-01	55.3907803148746
2003-01-01	55.5807860230727
2003-04-01	55.5081960569546
2003-07-01	55.3672968687790
2003-10-01	55.5641733829469
2004-01-01	55.4481185325149
2004-04-01	56.0221537603657
2004-07-01	55.2956337380008
2004-10-01	55.4407604231815
2005-01-01	55.2612874055536
2005-04-01	54.8429972821177
2005-07-01	54.8369267951046
2005-10-01	54.7226593667008
2006-01-01	54.7766728676310
2006-04-01	54.7766800828556
2006-07-01	54.6833653764725
2006-10-01	54.8014082152217
2007-01-01	55.0983112809353
2007-04-01	55.1556146380943
2007-07-01	55.4022734629280
2007-10-01	55.3566224814055
2008-01-01	54.8978306839113
2008-04-01	55.0193610935142
2008-07-01	55.9295119229934
2008-10-01	55.5945841407648
2009-01-01	55.5780226660878
2009-04-01	55.1226432389032
2009-07-01	55.4568481818098
2009-10-01	55.7700390699332
2010-01-01	56.3316324732691
2010-04-01	56.6041716810340
2010-07-01	56.3825340584684
2010-10-01	55.6569947635282
2011-01-01	55.5116506098697
2011-04-01	56.0651749528702
2011-07-01	56.9528003180207
2011-10-01	58.0579852540848
2012-01-01	58.6532561992436
2012-04-01	58.3605514891822
2012-07-01	56.9487635680526
2012-10-01	58.1403609153424
2013-01-01	57.2832875663093
2013-04-01	56.8769707341359
2013-07-01	57.1283986449678
2013-10-01	56.1194921797352
2014-01-01	56.6253583454640
2014-04-01	56.9148161411206
2014-07-01	56.7950933937763
2014-10-01	56.6914175705303
2015-01-01	58.0708477880739
2015-04-01	56.5043216266498
2015-07-01	57.3890497927104
2015-10-01	56.3881710677376
2016-01-01	55.2440197996706
2016-04-01	56.1498206253773
2016-07-01	55.0821181230702
2016-10-01	55.2569093722405
2017-01-01	55.4435348721891
2017-04-01	55.1979787492934
2017-07-01	54.3035399737522
2017-10-01	54.8971031490060
2018-01-01	51.7015109433078
2018-04-01	52.1487425162043
2018-07-01	51.4585346452843