Quarter	Percent, Seasonally Adjusted
1970-01-01	42.6788687850389
1970-04-01	42.4667261427757
1970-07-01	41.8927285820045
1970-10-01	41.7592229192332
1971-01-01	40.8355041736466
1971-04-01	40.4804781234875
1971-07-01	40.9742019351557
1971-10-01	40.9147636454329
1972-01-01	41.2927831836065
1972-04-01	42.1779462494486
1972-07-01	42.2548812784482
1972-10-01	43.1626747451481
1973-01-01	43.8762886044174
1973-04-01	44.1493190429416
1973-07-01	44.6368008580202
1973-10-01	45.5900369892808
1974-01-01	45.9302786882498
1974-04-01	46.4630620407011
1974-07-01	47.6085741192300
1974-10-01	48.3553907495385
1975-01-01	49.5508112786602
1975-04-01	50.0406810646176
1975-07-01	50.1904196560917
1975-10-01	49.4156823421946
1976-01-01	50.0003133281146
1976-04-01	51.6125977161485
1976-07-01	51.9738258275532
1976-10-01	52.8464640255038
1977-01-01	53.1452858867549
1977-04-01	54.4298601594550
1977-07-01	53.9033258248818
1977-10-01	54.6107337951640
1978-01-01	54.3941116383467
1978-04-01	54.1796750699123
1978-07-01	55.7376327226862
1978-10-01	55.9374873743776
1979-01-01	56.1622895276496
1979-04-01	55.7622018871173
1979-07-01	56.1789805323779
1979-10-01	56.5317691406837
1980-01-01	57.0935978357821
1980-04-01	57.3282490754123
1980-07-01	56.7860470771939
1980-10-01	56.5533590267512
1981-01-01	56.4261207328970
1981-04-01	56.4982541578475
1981-07-01	56.4599295017182
1981-10-01	57.0251482340336
1982-01-01	57.0709886738000
1982-04-01	56.6169170937528
1982-07-01	56.6658418300850
1982-10-01	56.0358550075118
1983-01-01	55.6543306475070
1983-04-01	55.6618697203390
1983-07-01	56.2245508091283
1983-10-01	56.2870398776164
1984-01-01	56.4700489220742
1984-04-01	56.5721461504388
1984-07-01	56.6351774732110
1984-10-01	56.7268919979560
1985-01-01	57.0268145844834
1985-04-01	57.5441054738505
1985-07-01	57.3568276252682
1985-10-01	57.3315751148334
1986-01-01	57.1110347102873
1986-04-01	57.2024199025437
1986-07-01	57.2221146806183
1986-10-01	57.3715531528304
1987-01-01	57.5586757582500
1987-04-01	57.6394704938136
1987-07-01	57.4383972846133
1987-10-01	57.7709312700131
1988-01-01	57.9379148628675
1988-04-01	57.4077045392416
1988-07-01	57.8546739447771
1988-10-01	57.7569242825951
1989-01-01	57.6919673455888
1989-04-01	57.5080069678832
1989-07-01	57.4980328987046
1989-10-01	57.1224543179410
1990-01-01	56.9146460212283
1990-04-01	56.4661193789411
1990-07-01	56.3407522309923
1990-10-01	55.7686534106430
1991-01-01	55.3739018937848
1991-04-01	54.7729674125274
1991-07-01	54.1275865378983
1991-10-01	54.2670845593502
1992-01-01	53.5899522532042
1992-04-01	53.6095598595784
1992-07-01	53.0344343297499
1992-10-01	52.8402044943596
1993-01-01	52.7814973929871
1993-04-01	52.6798795188077
1993-07-01	52.3749690612172
1993-10-01	51.5977169608820
1994-01-01	52.0295112284640
1994-04-01	51.7495157178937
1994-07-01	51.8042731734121
1994-10-01	51.9336511169252
1995-01-01	51.9549891404597
1995-04-01	52.0761860889092
1995-07-01	51.6496756310052
1995-10-01	51.6943060845073
1996-01-01	51.0778995270518
1996-04-01	51.0062136717887
1996-07-01	50.9286382629219
1996-10-01	50.8865950055949
1997-01-01	50.3779577228122
1997-04-01	50.5334467647450
1997-07-01	50.5013363758258
1997-10-01	50.9668718921791
1998-01-01	51.1961804929158
1998-04-01	51.2053552043561
1998-07-01	51.0429034090627
1998-10-01	50.9732964588137
1999-01-01	51.5468734603571
1999-04-01	51.9927353777268
1999-07-01	52.3609920805980
1999-10-01	52.4890926829578
2000-01-01	52.4694109655025
2000-04-01	52.4284489993236
2000-07-01	52.9877333351695
2000-10-01	52.5181989564852
2001-01-01	53.1560974845551
2001-04-01	52.9155960037297
2001-07-01	53.4785612137579
2001-10-01	53.7883147953449
2002-01-01	53.6422991047478
2002-04-01	53.9330720600116
2002-07-01	53.5055609266868
2002-10-01	54.6300569599975
2003-01-01	54.1015317004763
2003-04-01	54.5171437834240
2003-07-01	55.2619804136076
2003-10-01	55.3120198141410
2004-01-01	55.8776539113180
2004-04-01	56.0231762084942
2004-07-01	55.7627024919841
2004-10-01	55.7145928930839
2005-01-01	56.2771415996926
2005-04-01	56.0555909874591
2005-07-01	55.2436827067324
2005-10-01	54.5087641367448
2006-01-01	54.7137948401232
2006-04-01	55.4456417027726
2006-07-01	55.3593845089576
2006-10-01	55.5872429885755
2007-01-01	54.8183873104837
2007-04-01	54.5135301447881
2007-07-01	55.4695635576793
2007-10-01	55.4607962698585
2008-01-01	55.9646891293175
2008-04-01	55.4141541428694
2008-07-01	55.5117653420633
2008-10-01	55.8964106250920
2009-01-01	56.6099321648004
2009-04-01	57.0880448537409
2009-07-01	57.5086544044726
2009-10-01	58.1740454190690
2010-01-01	57.6833801511634
2010-04-01	58.2800807422418
2010-07-01	58.1251619709025
2010-10-01	57.9009207956116
2011-01-01	58.2755182848666
2011-04-01	57.3451834741216
2011-07-01	58.3787158778806
2011-10-01	58.3567292873287
2012-01-01	58.6068233760698
2012-04-01	58.7710665563685
2012-07-01	58.3395291183934
2012-10-01	58.3722328354516
2013-01-01	58.2228535258381
2013-04-01	58.2598953857284
2013-07-01	58.0876411868004
2013-10-01	58.7287932259133
2014-01-01	57.8257348021567
2014-04-01	58.0894272244943
2014-07-01	57.3180269187436
2014-10-01	58.1827437997416
2015-01-01	57.5784300031725
2015-04-01	58.5473540227867
2015-07-01	57.8304141028322
2015-10-01	56.4066408356850
2016-01-01	56.3041739046372
2016-04-01	55.4259253253654
2016-07-01	56.0906447433903
2016-10-01	54.8532617064134
2017-01-01	56.0813430487500
2017-04-01	55.3140482590514
2017-07-01	55.5921314749988
2017-10-01	56.0761759831833
2018-01-01	54.0084779500396
2018-04-01	53.3303553046653
2018-07-01	52.9085629252842