Quarter	Percent, Seasonally Adjusted
1978-04-01	45.7149566499670
1978-07-01	44.9017442201983
1978-10-01	44.0317783775047
1979-01-01	43.6846250996099
1979-04-01	43.4212797294463
1979-07-01	43.3852114787740
1979-10-01	43.2552458811520
1980-01-01	43.4661680246256
1980-04-01	43.8703442699929
1980-07-01	43.9163681132264
1980-10-01	43.1071419193025
1981-01-01	42.6369491228353
1981-04-01	42.1840969978602
1981-07-01	42.8461131902220
1981-10-01	42.3798083087430
1982-01-01	41.8832662036647
1982-04-01	41.0004818107020
1982-07-01	40.3305077021793
1982-10-01	40.3394810726613
1983-01-01	39.8935980259614
1983-04-01	38.8179213147127
1983-07-01	38.9125581910088
1983-10-01	38.7031194870928
1984-01-01	39.1134216490158
1984-04-01	39.1675772589325
1984-07-01	38.7978756642170
1984-10-01	38.6600113742567
1985-01-01	38.2925256735245
1985-04-01	37.3337528594803
1985-07-01	38.0074243853492
1985-10-01	39.0018328683368
1986-01-01	39.3900141461884
1986-04-01	39.7242579724787
1986-07-01	39.0724373682960
1986-10-01	39.2825420103620
1987-01-01	39.6638929985582
1987-04-01	39.6100167874817
1987-07-01	39.1642573438074
1987-10-01	39.0113259420631
1988-01-01	39.6223627630855
1988-04-01	39.7479896548018
1988-07-01	39.7015717121367
1988-10-01	40.0112622277257
1989-01-01	40.4193133616521
1989-04-01	41.0731146302750
1989-07-01	41.0683226499203
1989-10-01	41.0067005685972
1990-01-01	40.4176574868467
1990-04-01	41.0301272059953
1990-07-01	42.2508647704875
1990-10-01	42.3083735331805
1991-01-01	41.1556898476038
1991-04-01	40.3393255857324
1991-07-01	39.2928147330355
1991-10-01	39.8074152778927
1992-01-01	39.8027630535184
1992-04-01	39.4791995137655
1992-07-01	39.5294492217435
1992-10-01	38.5510076880840
1993-01-01	38.4505058161812
1993-04-01	38.1921356738241
1993-07-01	38.5117210216292
1993-10-01	39.1064315304507
1994-01-01	39.6573717582615
1994-04-01	40.4376505219659
1994-07-01	40.4816963242194
1994-10-01	40.5895056644787
1995-01-01	41.1021744134709
1995-04-01	41.5808860144128
1995-07-01	41.6327356589855
1995-10-01	42.1131690234096
1996-01-01	42.2982043364591
1996-04-01	42.1587052085158
1996-07-01	42.3010213995405
1996-10-01	42.3799769401749
1997-01-01	42.8476113388294
1997-04-01	42.6386581597009
1997-07-01	42.5358801742224
1997-10-01	42.8355296701894
1998-01-01	42.8560384053140
1998-04-01	43.7907343781153
1998-07-01	44.1137390386309
1998-10-01	43.7211863393268
1999-01-01	43.3121270744444
1999-04-01	43.4744736587549
1999-07-01	44.3802580607643
1999-10-01	44.9441395422255
2000-01-01	45.1486927646076
2000-04-01	45.9779078879486
2000-07-01	46.7500842378360
2000-10-01	46.3247360380356
2001-01-01	46.1141556798114
2001-04-01	46.7326905317696
2001-07-01	46.6317144804012
2001-10-01	47.4068376684092
2002-01-01	48.2770514371816
2002-04-01	48.3386200159295
2002-07-01	48.2202146915490
2002-10-01	49.0399439944596
2003-01-01	50.0596112153252
2003-04-01	50.2488508141283
2003-07-01	50.3218147418529
2003-10-01	50.5024405027620
2004-01-01	50.7676228886377
2004-04-01	51.4925468786447
2004-07-01	52.1611580326463
2004-10-01	52.3726217613148
2005-01-01	52.5376721340223
2005-04-01	53.1724909381960
2005-07-01	53.8675657419216
2005-10-01	54.3028593030891
2006-01-01	54.7253296151381
2006-04-01	55.1065374449467
2006-07-01	55.8876887263402
2006-10-01	55.9494281783820
2007-01-01	56.0087304506708
2007-04-01	56.6309848137510
2007-07-01	56.8059172348629
2007-10-01	56.5903575536636
2008-01-01	56.3572151809383
2008-04-01	57.2255289003787
2008-07-01	57.9136841377822
2008-10-01	57.7616640974530
2009-01-01	58.7872541633578
2009-04-01	58.9065154539984
2009-07-01	58.8293622279630
2009-10-01	59.5414601487803
2010-01-01	59.9094721674644
2010-04-01	60.1505813905724
2010-07-01	60.8026431921445
2010-10-01	61.5564796369058
2011-01-01	61.2159764746533
2011-04-01	61.0565326785937
2011-07-01	61.3005968956730
2011-10-01	61.0617379564533
2012-01-01	61.0613667853262
2012-04-01	61.4524954132573
2012-07-01	61.4932641520311
2012-10-01	61.7141147019100
2013-01-01	61.5355586915014
2013-04-01	61.8354170614339
2013-07-01	61.1367498628090
2013-10-01	61.0859680021155
2014-01-01	60.7998102753276
2014-04-01	61.3656092885168
2014-07-01	62.0781805647500
2014-10-01	61.4335807608682
2015-01-01	61.6224480128360
2015-04-01	61.9908231022652
2015-07-01	61.8168407372180
2015-10-01	63.0258939614874
2016-01-01	63.0471377630207
2016-04-01	62.5617877321459
2016-07-01	61.7482221265716
2016-10-01	62.5094170240605
2017-01-01	62.8508785789913
2017-04-01	63.7102734728399
2017-07-01	63.7159364370712
2017-10-01	64.0613336567807
2018-01-01	63.7463313590480
2018-04-01	63.3352287514914
2018-07-01	63.9541613704507