Quarter	Percent, Seasonally Adjusted
1970-01-01	86.9949821820818
1970-04-01	86.8346714462433
1970-07-01	86.9842260843562
1970-10-01	86.3840556691004
1971-01-01	87.5623296177885
1971-04-01	87.4189701971442
1971-07-01	87.0095192408576
1971-10-01	87.0700388330524
1972-01-01	86.7350205033839
1972-04-01	87.5363860703736
1972-07-01	86.5700218227398
1972-10-01	85.2376156504396
1973-01-01	86.7889962770497
1973-04-01	86.3923333017254
1973-07-01	86.8086107956256
1973-10-01	87.3757154703152
1974-01-01	86.9429325413205
1974-04-01	85.9377797442133
1974-07-01	86.4306508264319
1974-10-01	86.6777694294462
1975-01-01	86.3692326339402
1975-04-01	86.2577583549780
1975-07-01	86.6425791835816
1975-10-01	86.8206824497918
1976-01-01	86.8293320369195
1976-04-01	86.5208167620746
1976-07-01	86.6091274124134
1976-10-01	85.7953255280838
1977-01-01	85.2489144813018
1977-04-01	85.1829415528678
1977-07-01	84.8299547301533
1977-10-01	85.2547522329265
1978-01-01	85.1776333664374
1978-04-01	85.4731321962619
1978-07-01	85.0426773952500
1978-10-01	85.7365633177694
1979-01-01	85.1494777284707
1979-04-01	85.9451452689283
1979-07-01	85.4824107979728
1979-10-01	85.8181830659744
1980-01-01	85.8334435813642
1980-04-01	86.0157127079638
1980-07-01	85.5620302064191
1980-10-01	85.4153937903752
1981-01-01	86.0044263575917
1981-04-01	85.4813929283104
1981-07-01	85.1808120008297
1981-10-01	84.5040594730644
1982-01-01	85.1287267729093
1982-04-01	85.1975433359111
1982-07-01	85.5992185648526
1982-10-01	84.8731328614422
1983-01-01	84.8796606751750
1983-04-01	85.3686211015412
1983-07-01	85.0158526046596
1983-10-01	84.7195121871870
1984-01-01	84.8592649197958
1984-04-01	84.0423911748542
1984-07-01	83.9637537841670
1984-10-01	83.6824410039704
1985-01-01	83.7585096839039
1985-04-01	83.8994938244576
1985-07-01	83.0543751096506
1985-10-01	83.2586337239186
1986-01-01	83.2794651567436
1986-04-01	83.1004272864287
1986-07-01	83.4718796731449
1986-10-01	83.2296965180233
1987-01-01	82.9428793909889
1987-04-01	83.1981615503318
1987-07-01	83.1467102614730
1987-10-01	82.7239206679992
1988-01-01	82.7236548711224
1988-04-01	82.2706190159034
1988-07-01	82.6691585026514
1988-10-01	82.3153147103594
1989-01-01	82.6188822912770
1989-04-01	82.7109640828187
1989-07-01	83.0098116884849
1989-10-01	83.3990117788474
1990-01-01	83.3043326897026
1990-04-01	83.2921110645149
1990-07-01	83.5520526271371
1990-10-01	84.3234095808696
1991-01-01	84.5159340568570
1991-04-01	84.6210780235392
1991-07-01	84.6098528190159
1991-10-01	85.1573795254303
1992-01-01	85.1278725385969
1992-04-01	84.8536069951884
1992-07-01	84.7021057729812
1992-10-01	85.5403717513404
1993-01-01	85.6895412833462
1993-04-01	85.1605037139208
1993-07-01	85.6901983467951
1993-10-01	84.8164470290359
1994-01-01	84.8897397528615
1994-04-01	85.1025352046872
1994-07-01	85.7242533339402
1994-10-01	84.8271003600031
1995-01-01	84.5264219188133
1995-04-01	85.0059974014752
1995-07-01	84.7105415454422
1995-10-01	85.4746275175812
1996-01-01	84.4665644572503
1996-04-01	84.7669039266467
1996-07-01	85.4017229104256
1996-10-01	85.8628417835586
1997-01-01	85.1608194303528
1997-04-01	85.6533354186919
1997-07-01	84.9239543998974
1997-10-01	84.9200025144470
1998-01-01	85.1885589982110
1998-04-01	85.5878117379964
1998-07-01	84.8876935777699
1998-10-01	84.9377933469410
1999-01-01	86.0289665173593
1999-04-01	85.1565310373571
1999-07-01	84.9677047807659
1999-10-01	84.7868462351983
2000-01-01	84.4228080484458
2000-04-01	83.8770038608982
2000-07-01	84.4443811383079
2000-10-01	83.9606194557917
2001-01-01	84.0844490666630
2001-04-01	83.2860043046426
2001-07-01	83.2187666961086
2001-10-01	83.0417484021165
2002-01-01	83.3148665002561
2002-04-01	83.1166673464398
2002-07-01	82.2362652104784
2002-10-01	82.9535864886076
2003-01-01	82.9261499937389
2003-04-01	82.9392026869853
2003-07-01	82.9850253436429
2003-10-01	83.3683530399586
2004-01-01	82.6065943705914
2004-04-01	82.4996831813160
2004-07-01	82.9259848669383
2004-10-01	82.8459781463571
2005-01-01	82.8626114445806
2005-04-01	82.9371787808987
2005-07-01	83.5270188156339
2005-10-01	82.9657614082387
2006-01-01	83.4285781323516
2006-04-01	84.1644479179147
2006-07-01	83.9625793849539
2006-10-01	83.6573521966499
2007-01-01	84.8549456723149
2007-04-01	84.8143387840282
2007-07-01	85.0173612434296
2007-10-01	85.0009262886763
2008-01-01	85.0886819853316
2008-04-01	85.0473378220459
2008-07-01	85.0623832688626
2008-10-01	85.3953389553434
2009-01-01	84.8778081675950
2009-04-01	84.5706472110540
2009-07-01	84.6338019097562
2009-10-01	84.3952230337770
2010-01-01	84.4003572940486
2010-04-01	84.2030543725140
2010-07-01	84.0902746551831
2010-10-01	83.8175703581839
2011-01-01	83.9471706360632
2011-04-01	84.3437261755620
2011-07-01	83.2380949298220
2011-10-01	83.5929152855164
2012-01-01	83.0426186340171
2012-04-01	82.7524199814405
2012-07-01	82.6138122132161
2012-10-01	83.2272554527520
2013-01-01	83.4395595258555
2013-04-01	83.2816160619038
2013-07-01	83.6353333637060
2013-10-01	84.0129132720964
2014-01-01	84.6625771438083
2014-04-01	84.6099709879480
2014-07-01	85.0924916055838
2014-10-01	85.1542915307189
2015-01-01	85.6335543481071
2015-04-01	85.2207022226737
2015-07-01	86.1902746229969
2015-10-01	85.7908886726566
2016-01-01	86.0277726450398
2016-04-01	86.4897101071226
2016-07-01	86.9127414169306
2016-10-01	86.7283657780322
2017-01-01	87.0508901524138
2017-04-01	87.2540002809922
2017-07-01	88.0032819458166
2017-10-01	88.3390879693900
2018-01-01	88.1047717729127
2018-04-01	88.8055607928978
2018-07-01	88.2397728836323