Quarter	Percent, Seasonally Adjusted
1980-01-01	12.81865562361240
1980-04-01	13.06700805958860
1980-07-01	13.50679056468910
1980-10-01	13.71327254305980
1981-01-01	12.40659981667180
1981-04-01	12.91066626830000
1981-07-01	13.58165972912130
1981-10-01	12.30790739942450
1982-01-01	13.24409651290700
1982-04-01	12.79386668704310
1982-07-01	13.88136372929870
1982-10-01	11.68704685640080
1983-01-01	12.14971209213050
1983-04-01	13.93097046195900
1983-07-01	12.16108780875620
1983-10-01	13.20686812867870
1984-01-01	12.47847745225610
1984-04-01	11.47792706333970
1984-07-01	12.21342925659470
1984-10-01	13.09767638957550
1985-01-01	11.69648201103940
1985-04-01	11.04359676431240
1985-07-01	11.94595529076960
1985-10-01	12.35101387957280
1986-01-01	10.60470590898290
1986-04-01	10.68441587278090
1986-07-01	11.27123803198850
1986-10-01	11.17405298341170
1987-01-01	11.45959611658530
1987-04-01	9.37555146595406
1987-07-01	10.17475429187300
1987-10-01	10.52984727527810
1988-01-01	10.86570821631170
1988-04-01	10.58695946861870
1988-07-01	11.23005992283910
1988-10-01	11.36243769942780
1989-01-01	11.90368372349430
1989-04-01	12.34916897258600
1989-07-01	12.92280806640760
1989-10-01	13.36598295166370
1990-01-01	13.51988284077460
1990-04-01	13.30534672008600
1990-07-01	13.46089344485670
1990-10-01	12.93092949513080
1991-01-01	12.35145068139800
1991-04-01	12.79305025716320
1991-07-01	14.51083214153290
1991-10-01	14.05156051635930
1992-01-01	14.10534801773570
1992-04-01	14.02118284114540
1992-07-01	15.56248607707730
1992-10-01	15.32169443838700
1993-01-01	15.07277628032340
1993-04-01	14.53353769209050
1993-07-01	16.01377920232630
1993-10-01	16.57905187293820
1994-01-01	15.74721828543860
1994-04-01	15.27755238743050
1994-07-01	16.35027617699260
1994-10-01	15.33179430402110
1995-01-01	16.31441540901780
1995-04-01	15.36365027582570
1995-07-01	16.92052550859420
1995-10-01	16.30250809663630
1996-01-01	16.61795000278380
1996-04-01	16.22787608159530
1996-07-01	17.07860666616580
1996-10-01	16.28491283979200
1997-01-01	16.39522187138270
1997-04-01	16.71223021582730
1997-07-01	18.20886760873900
1997-10-01	15.14977216526680
1998-01-01	18.26990671894010
1998-04-01	19.23397488096720
1998-07-01	21.74101662995410
1998-10-01	20.45339086882980
1999-01-01	19.10304369748410
1999-04-01	18.18593572221780
1999-07-01	17.67294340276390
1999-10-01	17.55945579647350
2000-01-01	15.88372670200950
2000-04-01	16.15158140212800
2000-07-01	17.29237166562510
2000-10-01	16.86680346495490
2001-01-01	16.06431535269710
2001-04-01	17.33100676818950
2001-07-01	19.10919070622820
2001-10-01	18.98022846612420
2002-01-01	19.18673135507160
2002-04-01	17.54430783969340
2002-07-01	19.64957999069030
2002-10-01	17.82328898965230
2003-01-01	16.99253435254700
2003-04-01	16.57234389005870
2003-07-01	19.41381657156970
2003-10-01	17.31989674568550
2004-01-01	16.74900567644550
2004-04-01	15.81568047296330
2004-07-01	18.60992734286540
2004-10-01	18.80081313896620
2005-01-01	18.13916887243920
2005-04-01	16.71282591108010
2005-07-01	18.03750735772840
2005-10-01	17.26639696992660
2006-01-01	17.58256456900150
2006-04-01	16.43611127368750
2006-07-01	17.33767813496630
2006-10-01	18.33470909965500
2007-01-01	18.13939585466010
2007-04-01	16.74591490872840
2007-07-01	19.08640248598930
2007-10-01	18.30440704741360
2008-01-01	17.90605142386440
2008-04-01	17.04314853999150
2008-07-01	17.48151210205870
2008-10-01	18.74141104187760
2009-01-01	19.56136602293880
2009-04-01	19.24107422281180
2009-07-01	19.04748575102400
2009-10-01	19.42504694164160
2010-01-01	18.45933746123180
2010-04-01	16.77145739704670
2010-07-01	17.91197214427610
2010-10-01	18.04979157154850
2011-01-01	15.11530101669920
2011-04-01	13.71189216940620
2011-07-01	15.15117961608560
2011-10-01	15.46996128486430
2012-01-01	15.12479035310370
2012-04-01	14.52893257283460
2012-07-01	16.23816524130930
2012-10-01	16.76914835016220
2013-01-01	16.51840751037340
2013-04-01	15.11496297064030
2013-07-01	16.41418970934990
2013-10-01	16.81888776160570
2014-01-01	16.79233976242240
2014-04-01	16.37612467406350
2014-07-01	17.49332416783440
2014-10-01	17.86072600545930
2015-01-01	20.40011111087790
2015-04-01	18.51432381548990
2015-07-01	20.30817823695230
2015-10-01	20.27952551828420
2016-01-01	22.32318380165420
2016-04-01	20.43210941753670
2016-07-01	21.20233523059350
2016-10-01	19.42629118184730
2017-01-01	19.84753195869530
2017-04-01	17.78576821200530
2017-07-01	20.26278808683640
2017-10-01	20.74587418366950
2018-01-01	19.27344782034350
2018-04-01	17.68589375924710
2018-07-01	19.52932971791970