Quarter	Percent, Seasonally Adjusted
1960-01-01	11.1913357400722
1960-04-01	13.0769230769231
1960-07-01	14.7826086956522
1960-10-01	12.8598848368522
1961-01-01	13.3802816901408
1961-04-01	11.6427432216906
1961-07-01	13.0662020905923
1961-10-01	11.3884555382215
1962-01-01	12.2807017543860
1962-04-01	12.3028391167192
1962-07-01	14.5220588235294
1962-10-01	12.9687500000000
1963-01-01	12.7692307692308
1963-04-01	12.9713423831071
1963-07-01	12.7423822714681
1963-10-01	12.3039806996381
1964-01-01	12.1137206427688
1964-04-01	12.6081582200247
1964-07-01	14.8044692737430
1964-10-01	13.4347275031686
1965-01-01	14.7174770039422
1965-04-01	15.2201257861635
1965-07-01	15.9947984395319
1965-10-01	15.4235145385588
1966-01-01	15.4248366013072
1966-04-01	14.3377885783718
1966-07-01	15.0966183574879
1966-10-01	14.8986889153754
1967-01-01	15.6355455568054
1967-04-01	15.0000000000000
1967-07-01	16.4936562860438
1967-10-01	16.4130434782609
1968-01-01	17.7777777777778
1968-04-01	16.8610816542948
1968-07-01	17.2717271727173
1968-10-01	16.2324649298597
1969-01-01	16.9087136929461
1969-04-01	16.6666666666667
1969-07-01	15.2777777777778
1969-10-01	15.9420289855072
1970-01-01	16.3034705407587
1970-04-01	16.7353668590272
1970-07-01	17.2496025437202
1970-10-01	16.7200000000000
1971-01-01	15.8496732026144
1971-04-01	16.5084002921841
1971-07-01	16.3352272727273
1971-10-01	17.0353982300885
1972-01-01	17.2413793103448
1972-04-01	15.5792276964048
1972-07-01	14.2764857881137
1972-10-01	13.0681818181818
1973-01-01	12.6467449306297
1973-04-01	13.1478450627387
1973-07-01	12.9032258064516
1973-10-01	12.5620655412115
1974-01-01	13.8194798572157
1974-04-01	14.3403441682600
1974-07-01	15.9569892473118
1974-10-01	14.8017275225756
1975-01-01	15.1112846544319
1975-04-01	13.5947233418835
1975-07-01	14.7372429550647
1975-10-01	14.7887323943662
1976-01-01	14.4428672817601
1976-04-01	13.9980513153621
1976-07-01	13.4817935600361
1976-10-01	13.9755351681957
1977-01-01	13.8741916519694
1977-04-01	13.7108364472550
1977-07-01	13.6881047239613
1977-10-01	13.8512579485762
1978-01-01	15.2817302219693
1978-04-01	15.4933405816798
1978-07-01	16.7430574278781
1978-10-01	16.6583789159622
1979-01-01	15.5420602789024
1979-04-01	14.6387434554974
1979-07-01	14.7946859903382
1979-10-01	13.6720796228392
1980-01-01	14.2040533518102
1980-04-01	14.3695536190646
1980-07-01	15.6289251749507
1980-10-01	15.6558533145275
1981-01-01	15.9842660468443
1981-04-01	15.9918339571283
1981-07-01	16.5906699403718
1981-10-01	17.5261515874472
1982-01-01	17.0188556566970
1982-04-01	16.9020642557815
1982-07-01	17.0163170163170
1982-10-01	16.4113453662976
1983-01-01	17.9791734461438
1983-04-01	16.9478644170847
1983-07-01	18.0541025257809
1983-10-01	16.7680398119989
1984-01-01	16.9226511692265
1984-04-01	16.6514657980456
1984-07-01	15.1504507668891
1984-10-01	16.7740367083992
1985-01-01	16.1161604965640
1985-04-01	15.0246305418719
1985-07-01	15.1453340132585
1985-10-01	15.8211953792064
1986-01-01	16.9472270990396
1986-04-01	18.2330238865130
1986-07-01	16.8530805687204
1986-10-01	17.7108541722685
1987-01-01	18.4239130434783
1987-04-01	17.7961717537506
1987-07-01	19.2972205992822
1987-10-01	18.0838048631289
1988-01-01	18.2942708333333
1988-04-01	20.7148975936454
1988-07-01	21.4921544960772
1988-10-01	20.6250921421200
1989-01-01	20.4247890602269
1989-04-01	19.5456351834680
1989-07-01	19.3011647254576
1989-10-01	19.3281863741027
1990-01-01	19.7715962740845
1990-04-01	21.0312935512479
1990-07-01	21.3688022979893
1990-10-01	20.8760091577298
1991-01-01	20.6668633815285
1991-04-01	20.4922825070159
1991-07-01	20.4487771112137
1991-10-01	21.8295696144343
1992-01-01	21.6439909297052
1992-04-01	21.0672133872666
1992-07-01	21.6253516641011
1992-10-01	21.2300173098462
1993-01-01	22.4956953306999
1993-04-01	22.7102140176488
1993-07-01	22.7798669366503
1993-10-01	23.1119113048422
1994-01-01	23.1816878524324
1994-04-01	23.2870874567925
1994-07-01	23.8504247140891
1994-10-01	23.9458109857592
1995-01-01	24.2105724171156
1995-04-01	24.5723839327818
1995-07-01	24.0464276925601
1995-10-01	23.4244260335518
1996-01-01	23.4997655883732
1996-04-01	23.7330617999530
1996-07-01	24.3798015364917
1996-10-01	25.2812060615529
1997-01-01	24.0585299455535
1997-04-01	22.0120874643488
1997-07-01	23.3358970773318
1997-10-01	22.8636615044248
1998-01-01	23.3848115613488
1998-04-01	22.9785073616517
1998-07-01	23.4555721866921
1998-10-01	24.1323509158518
1999-01-01	24.8185101741587
1999-04-01	26.5152895724751
1999-07-01	25.3834701014508
1999-10-01	23.9034320430039
2000-01-01	23.6602536869576
2000-04-01	23.1952595293715
2000-07-01	26.3139868798904
2000-10-01	22.4093230998280
2001-01-01	22.5220629495485
2001-04-01	22.0071156913262
2001-07-01	22.4795572397288
2001-10-01	22.1146879205051
2002-01-01	22.7420667209113
2002-04-01	23.6167027975637
2002-07-01	23.5949575085368
2002-10-01	24.3029504207645
2003-01-01	23.8475313379381
2003-04-01	25.1859154929577
2003-07-01	26.7389773207494
2003-10-01	27.3541233541234
2004-01-01	25.8010211121844
2004-04-01	25.0551599638953
2004-07-01	24.7993500418534
2004-10-01	24.4557222712563
2005-01-01	25.3755223880597
2005-04-01	22.0575587165068
2005-07-01	22.8340342931090
2005-10-01	22.3978246202286
2006-01-01	22.5075830140485
2006-04-01	21.5159755268525
2006-07-01	21.7972808665856
2006-10-01	22.5373433766802
2007-01-01	23.1425157505974
2007-04-01	23.3693888588426
2007-07-01	23.5645350410391
2007-10-01	23.8414623240507
2008-01-01	23.2996972754793
2008-04-01	21.1766647165594
2008-07-01	19.5595592895770
2008-10-01	18.7225993937420
2009-01-01	19.6324344539274
2009-04-01	23.1353070391135
2009-07-01	23.3966905941428
2009-10-01	23.4879624192601
2010-01-01	21.7856142425846
2010-04-01	18.8490709900076
2010-07-01	19.1248600522472
2010-10-01	19.0407074413041
2011-01-01	18.5072872276474
2011-04-01	18.1280937468431
2011-07-01	17.0181538202423
2011-10-01	17.0609484656458
2012-01-01	18.3720407650721
2012-04-01	17.8013351001325
2012-07-01	18.6350871615535
2012-10-01	19.1387815670914
2013-01-01	19.0442699175556
2013-04-01	18.4631950617902
2013-07-01	18.3103360704309
2013-10-01	18.5507834409346
2014-01-01	17.7966389407571
2014-04-01	19.7240724279434
2014-07-01	20.4589504025445
2014-10-01	20.8542160721707
2015-01-01	21.3236871588282
2015-04-01	22.4797085703330
2015-07-01	22.4307602367671
2015-10-01	23.9416869844238
2016-01-01	24.4169620383213
2016-04-01	23.6536722596202
2016-07-01	23.9035140538067
2016-10-01	20.9234378108932
2017-01-01	20.9388754041233
2017-04-01	22.2407853229288
2017-07-01	22.3912770499351
2017-10-01	22.0664422044552
2018-01-01	20.6631348367735
2018-04-01	20.4596122550726