Quarter	Percent, Seasonally Adjusted
1970-01-01	15.1869852955120
1970-04-01	15.1795605518508
1970-07-01	15.0493973975340
1970-10-01	14.9300226148487
1971-01-01	14.4074139332119
1971-04-01	14.3868742538040
1971-07-01	14.7328431671369
1971-10-01	14.5132891932254
1972-01-01	14.3360991983841
1972-04-01	14.3642175995561
1972-07-01	14.2652061896886
1972-10-01	14.5124435347740
1973-01-01	14.3238154424793
1973-04-01	14.1784108080952
1973-07-01	14.1320015053293
1973-10-01	14.2904178248904
1974-01-01	14.2009439069326
1974-04-01	14.2218248143423
1974-07-01	14.5054574218381
1974-10-01	14.4609106121435
1975-01-01	14.7252660135017
1975-04-01	14.8621837088006
1975-07-01	14.7077781485164
1975-10-01	14.1597417895078
1976-01-01	14.3328823012383
1976-04-01	14.7484660996990
1976-07-01	14.7333929285526
1976-10-01	14.7988224986594
1977-01-01	14.9054571860853
1977-04-01	15.2227440047425
1977-07-01	15.1346683272967
1977-10-01	15.1408936641983
1978-01-01	14.9659286933002
1978-04-01	14.8733824646742
1978-07-01	15.2581260097520
1978-10-01	15.2294662550691
1979-01-01	15.2864963510332
1979-04-01	14.9885639696294
1979-07-01	15.0020783565974
1979-10-01	15.0964721458895
1980-01-01	15.3631431327640
1980-04-01	15.4454829212797
1980-07-01	15.2889419587285
1980-10-01	15.1807028056770
1981-01-01	15.0216754159533
1981-04-01	15.1607028851477
1981-07-01	15.2968249572660
1981-10-01	15.5277885724095
1982-01-01	15.2832915100879
1982-04-01	15.1657030952581
1982-07-01	15.3785789265740
1982-10-01	15.1800314733611
1983-01-01	15.1318576104257
1983-04-01	15.1192030368403
1983-07-01	15.2782605270048
1983-10-01	15.4064969170550
1984-01-01	15.5182844995952
1984-04-01	15.6728972529119
1984-07-01	15.7053776219958
1984-10-01	15.7553200906287
1985-01-01	16.0057323622526
1985-04-01	16.1907337691446
1985-07-01	16.3613514854756
1985-10-01	16.3870656025588
1986-01-01	16.3897901764658
1986-04-01	16.4786345867429
1986-07-01	16.3973737107563
1986-10-01	16.6421062786156
1987-01-01	16.7577545246056
1987-04-01	16.8219056612415
1987-07-01	16.7001476441345
1987-10-01	16.8889793328996
1988-01-01	17.0329564166904
1988-04-01	16.9975699516694
1988-07-01	17.0612619730684
1988-10-01	17.1476429284386
1989-01-01	17.1057909834838
1989-04-01	16.9705307220249
1989-07-01	17.0511758868097
1989-10-01	17.0440630674235
1990-01-01	16.9399725322221
1990-04-01	16.8145093330991
1990-07-01	16.7533566598406
1990-10-01	16.4763999250588
1991-01-01	16.3840359936561
1991-04-01	16.2927833950654
1991-07-01	16.2823237987888
1991-10-01	16.1349155325874
1992-01-01	15.8088246984016
1992-04-01	15.9673233435913
1992-07-01	15.9184567981710
1992-10-01	15.6325880868462
1993-01-01	15.6401414813257
1993-04-01	15.6059993882211
1993-07-01	15.5235350232767
1993-10-01	15.3795167537761
1994-01-01	15.5814265576849
1994-04-01	15.5214111093214
1994-07-01	15.4211170839185
1994-10-01	15.5688277033909
1995-01-01	15.6538205533936
1995-04-01	15.5374853114387
1995-07-01	15.2381391961891
1995-10-01	15.1783988992507
1996-01-01	15.1575454750333
1996-04-01	14.9416051873069
1996-07-01	14.6977885441480
1996-10-01	14.6982165087461
1997-01-01	14.4387118565246
1997-04-01	14.3653130939053
1997-07-01	14.5462644866597
1997-10-01	14.7073077753144
1998-01-01	14.6315821890097
1998-04-01	14.5396538299500
1998-07-01	14.6165082235266
1998-10-01	14.5405251796951
1999-01-01	14.4718499588868
1999-04-01	14.6138679895110
1999-07-01	14.6511680151686
1999-10-01	14.6071471663667
2000-01-01	14.6657601971873
2000-04-01	14.6917126683974
2000-07-01	14.6654442655089
2000-10-01	14.5063768433295
2001-01-01	14.7182514496207
2001-04-01	14.7302613191953
2001-07-01	14.8768506433019
2001-10-01	15.0921103335310
2002-01-01	15.0789834889382
2002-04-01	15.1679015160579
2002-07-01	15.1128117898679
2002-10-01	15.2571234524092
2003-01-01	15.1781286227766
2003-04-01	15.2734466959606
2003-07-01	15.3463926503066
2003-10-01	15.2594744900415
2004-01-01	15.5484876900454
2004-04-01	15.6538332237831
2004-07-01	15.5792869159912
2004-10-01	15.5502253775054
2005-01-01	15.6478563754275
2005-04-01	15.6831600164888
2005-07-01	15.3410820619278
2005-10-01	15.2426574126756
2006-01-01	15.1406759568238
2006-04-01	15.1321346417512
2006-07-01	15.1496111610776
2006-10-01	15.0893535414581
2007-01-01	14.7801589164848
2007-04-01	14.6054090739794
2007-07-01	14.7036941244300
2007-10-01	14.6864601898583
2008-01-01	14.8164034105208
2008-04-01	14.7441475451086
2008-07-01	14.6520648496092
2008-10-01	14.6421336118941
2009-01-01	14.9464476352076
2009-04-01	15.1132781888675
2009-07-01	15.0244190637899
2009-10-01	15.1435869815072
2010-01-01	15.0082667566849
2010-04-01	15.1615326934510
2010-07-01	15.0396047727603
2010-10-01	15.0625366428862
2011-01-01	14.9966935605019
2011-04-01	14.8094557126708
2011-07-01	15.2872290288886
2011-10-01	15.4883042384888
2012-01-01	15.5969008898375
2012-04-01	15.6299281872741
2012-07-01	15.6288761382971
2012-10-01	15.6114692966453
2013-01-01	15.5158607537147
2013-04-01	15.4034067874052
2013-07-01	15.3071217102899
2013-10-01	15.2568298336604
2014-01-01	15.1335981369673
2014-04-01	15.0391725653888
2014-07-01	15.0302008256535
2014-10-01	15.0868324656446
2015-01-01	14.9939900221960
2015-04-01	15.0795386071747
2015-07-01	14.9060603094566
2015-10-01	14.7348215732667
2016-01-01	14.6068479433489
2016-04-01	14.4637654125931
2016-07-01	14.3842790829356
2016-10-01	14.3325877491838
2017-01-01	14.4441180710203
2017-04-01	14.4356666011649
2017-07-01	14.3314638295371
2017-10-01	14.2645990817681
2018-01-01	14.1126126179803
2018-04-01	13.9434443899243
2018-07-01	13.9144389190990