Quarter	Percent, Seasonally Adjusted
1986-01-01	85.1512126273013
1986-04-01	84.8712304359935
1986-07-01	84.3289654865535
1986-10-01	83.6139420302329
1987-01-01	84.0756045364966
1987-04-01	83.5139879701675
1987-07-01	83.4058402027680
1987-10-01	82.4679784012763
1988-01-01	81.0774203179865
1988-04-01	80.5080331054418
1988-07-01	78.8547156616087
1988-10-01	78.6493657073228
1989-01-01	77.8652147422760
1989-04-01	77.4054882732335
1989-07-01	77.0084080832637
1989-10-01	76.9085083812334
1990-01-01	76.6128715597996
1990-04-01	76.6285542685702
1990-07-01	75.9391048964420
1990-10-01	75.4059254302700
1991-01-01	74.2593589246500
1991-04-01	73.8986664846795
1991-07-01	73.1158295390160
1991-10-01	72.8088318298963
1992-01-01	72.9417381504015
1992-04-01	73.2563747488602
1992-07-01	72.7153849159020
1992-10-01	72.8728694055827
1993-01-01	73.1642470325780
1993-04-01	73.9065967089349
1993-07-01	73.8280846486631
1993-10-01	74.4637473274356
1994-01-01	74.4812740474691
1994-04-01	75.6253498102017
1994-07-01	76.1231760587708
1994-10-01	76.6246496853425
1995-01-01	77.4548554761213
1995-04-01	78.1338361866090
1995-07-01	78.3830933709139
1995-10-01	78.8096390783936
1996-01-01	78.3467164206628
1996-04-01	78.5830554178158
1996-07-01	78.7468644464770
1996-10-01	78.4656147160028
1997-01-01	78.0565019365312
1997-04-01	78.2169136794735
1997-07-01	78.1797260751850
1997-10-01	78.0741776159502
1998-01-01	77.5390224693982
1998-04-01	76.9976479002099
1998-07-01	76.3722371407826
1998-10-01	76.0472051131296
1999-01-01	76.2852179223271
1999-04-01	76.4182144775648
1999-07-01	76.7937349227201
1999-10-01	77.8181560813348
2000-01-01	77.3883251915443
2000-04-01	77.3821274993337
2000-07-01	77.9974246900838
2000-10-01	78.5053597533346
2001-01-01	78.3980995405663
2001-04-01	78.1907478139586
2001-07-01	78.8313579345584
2001-10-01	79.0010489954801
2002-01-01	79.8895912574898
2002-04-01	79.3543355530651
2002-07-01	79.2723142619372
2002-10-01	79.3874382140189
2003-01-01	79.1014395560302
2003-04-01	78.9521652595029
2003-07-01	79.4408970021260
2003-10-01	79.2867358714512
2004-01-01	79.6971325137302
2004-04-01	80.6128086753542
2004-07-01	80.6969881006066
2004-10-01	81.5205849354069
2005-01-01	81.0478907227483
2005-04-01	80.8386712539304
2005-07-01	81.3998600725868
2005-10-01	82.0238542944384
2006-01-01	81.8640289658980
2006-04-01	82.1007548908903
2006-07-01	81.7021097494284
2006-10-01	81.9447045777632
2007-01-01	81.8537256249602
2007-04-01	81.9069198033225
2007-07-01	82.1972168169450
2007-10-01	81.9589395625318
2008-01-01	80.5753655693936
2008-04-01	81.4714528762821
2008-07-01	80.6784006640344
2008-10-01	80.9522939717385
2009-01-01	78.9923258013594
2009-04-01	79.5917035229154
2009-07-01	77.9204998960704
2009-10-01	78.0219874506444
2010-01-01	77.9462465307881
2010-04-01	78.0494616809790
2010-07-01	78.8390474414570
2010-10-01	78.0127621903054
2011-01-01	78.3246048385866
2011-04-01	78.1770208452803
2011-07-01	78.4354118211170
2011-10-01	78.0906976777306
2012-01-01	78.2102178373884
2012-04-01	77.6699154994727
2012-07-01	77.2000400750142
2012-10-01	76.6164750283284
2013-01-01	77.3017529049249
2013-04-01	78.0299079992800
2013-07-01	78.5706962960836
2013-10-01	79.1148575773122
2014-01-01	79.3143802064272
2014-04-01	79.9282031734463
2014-07-01	79.5876490792000
2014-10-01	79.9441954718588
2015-01-01	80.1552310135518
2015-04-01	79.9975685042670
2015-07-01	78.9004745401176
2015-10-01	79.3996927898371
2016-01-01	79.6067968993464
2016-04-01	80.7132030974014
2016-07-01	81.0371412781661
2016-10-01	81.4023554672258
2017-01-01	81.9349381812383
2017-04-01	81.3179547565484
2017-07-01	82.0945101795087
2017-10-01	82.1873215399663
2018-01-01	82.2434950141011
2018-04-01	82.2340350302124
2018-07-01	82.3882587837826