Quarter	Percent, Seasonally Adjusted
1962-01-01	0.441836970905891
1962-04-01	0.444927570905527
1962-07-01	0.450280662021786
1962-10-01	0.474485330023600
1963-01-01	0.613528939767618
1963-04-01	0.509809144964522
1963-07-01	0.523236023427814
1963-10-01	0.520771071259152
1964-01-01	0.519668332435070
1964-04-01	0.502171330287675
1964-07-01	0.492060008750884
1964-10-01	0.466171301264496
1965-01-01	0.459853761492977
1965-04-01	0.443004587002174
1965-07-01	0.418149472184348
1965-10-01	0.397675743611360
1966-01-01	0.373102057012375
1966-04-01	0.387287820909651
1966-07-01	0.464987109860842
1966-10-01	0.665388037759165
1967-01-01	0.946750508552580
1967-04-01	1.519846520230680
1967-07-01	1.599730533932990
1967-10-01	1.432199018727060
1968-01-01	1.091426292053160
1968-04-01	1.108165337014180
1968-07-01	0.926308212939092
1968-10-01	0.761844110205610
1969-01-01	0.637745101448768
1969-04-01	0.543859988094409
1969-07-01	0.487417762698870
1969-10-01	0.456177219422675
1970-01-01	0.477053046985939
1970-04-01	0.422463279019848
1970-07-01	0.420130519806834
1970-10-01	0.430221962060379
1971-01-01	0.473359387172845
1971-04-01	0.507971329124344
1971-07-01	0.557270696910103
1971-10-01	0.625951709224774
1972-01-01	0.685026040735980
1972-04-01	0.721321731881241
1972-07-01	0.752966003609573
1972-10-01	0.726919645087886
1973-01-01	0.692465653199078
1973-04-01	0.727834798454025
1973-07-01	0.791527738531389
1973-10-01	0.964100567917310
1974-01-01	1.228945484444890
1974-04-01	1.486782554730870
1974-07-01	1.802458419198480
1974-10-01	2.286370079544860
1975-01-01	2.549082618649300
1975-04-01	3.198293303189190
1975-07-01	3.509755802158860
1975-10-01	3.466961376974920
1976-01-01	3.272362029701500
1976-04-01	3.217692067516020
1976-07-01	3.116980825474970
1976-10-01	3.065353255274090
1977-01-01	3.031265319532150
1977-04-01	3.099413566600690
1977-07-01	3.122554127091360
1977-10-01	3.081747279371820
1978-01-01	3.021543467843570
1978-04-01	3.012811534067010
1978-07-01	2.942391924669420
1978-10-01	2.860563417276950
1979-01-01	2.778961406659900
1979-04-01	2.616641488240920
1979-07-01	2.523691763744800
1979-10-01	2.425236385232490
1980-01-01	2.439179005254040
1980-04-01	2.475362142015370
1980-07-01	2.636888424112410
1980-10-01	2.832775711009260
1981-01-01	3.132610424113410
1981-04-01	3.473404608355630
1981-07-01	3.882338502840330
1981-10-01	4.321641225436510
1982-01-01	4.730887233764370
1982-04-01	5.116576421733970
1982-07-01	5.486720367895160
1982-10-01	5.996034407952320
1983-01-01	6.310318204105860
1983-04-01	6.642630334188290
1983-07-01	6.707383569462060
1983-10-01	6.647098740018580
1984-01-01	6.563587334718900
1984-04-01	6.565475682527230
1984-07-01	6.603821556270240
1984-10-01	6.605729483756170
1985-01-01	6.637508352374670
1985-04-01	6.683931652495960
1985-07-01	6.641474889884180
1985-10-01	6.625378854255230
1986-01-01	6.554071151070100
1986-04-01	6.430145672566860
1986-07-01	6.307781939136690
1986-10-01	6.223234148158910
1987-01-01	6.285528533900490
1987-04-01	6.317534269264270
1987-07-01	6.352610391991740
1987-10-01	6.380888222901160
1988-01-01	6.187857554087070
1988-04-01	6.159647801618400
1988-07-01	6.048324078754670
1988-10-01	5.912485587117720
1989-01-01	5.690184958200590
1989-04-01	5.548761954705480
1989-07-01	5.383093807016780
1989-10-01	5.368752253578340
1990-01-01	5.057937654960890
1990-04-01	4.913337680361320
1990-07-01	4.712421176911350
1990-10-01	4.582636239988950
1991-01-01	5.202250689364790
1991-04-01	5.399178936701070
1991-07-01	5.903006539290410
1991-10-01	6.062512416916710
1992-01-01	6.431598406994380
1992-04-01	6.553960311822830
1992-07-01	6.756103960593780
1992-10-01	7.073546828658230
1993-01-01	7.368248520257980
1993-04-01	7.783748008062320
1993-07-01	8.168796032815890
1993-10-01	8.523405201805740
1994-01-01	8.591407194842950
1994-04-01	8.657726443573190
1994-07-01	8.466737646983100
1994-10-01	8.250105277988930
1995-01-01	8.081577757775320
1995-04-01	8.128480796972630
1995-07-01	8.233556273508980
1995-10-01	8.390529977614520
1996-01-01	8.716042724634650
1996-04-01	8.783499278581760
1996-07-01	9.017266588255060
1996-10-01	9.302149875155780
1997-01-01	9.670914697853980
1997-04-01	9.890916524609040
1997-07-01	10.043127267135100
1997-10-01	10.045521514700900
1998-01-01	9.746667633089860
1998-04-01	9.419203946797840
1998-07-01	9.109891466456400
1998-10-01	8.878470069257100
1999-01-01	8.650435517756830
1999-04-01	8.571765576119150
1999-07-01	8.418846676316840
1999-10-01	8.217050773171720
2000-01-01	8.045323411678220
2000-04-01	7.839440683007710
2000-07-01	7.715297124869690
2000-10-01	7.598430610616070
2001-01-01	7.682158138259990
2001-04-01	7.759631781876580
2001-07-01	7.924888943192660
2001-10-01	8.155155984427420
2002-01-01	8.291513550635720
2002-04-01	8.532789575572620
2002-07-01	8.837819789192630
2002-10-01	9.151684069279030
2003-01-01	9.525595414819360
2003-04-01	9.723369295056120
2003-07-01	9.777498196146050
2003-10-01	9.746967224603440
2004-01-01	9.716370947941650
2004-04-01	9.685534980173890
2004-07-01	9.923495784880830
2004-10-01	10.072501836576400
2005-01-01	10.824216890779800
2005-04-01	11.296890629089600
2005-07-01	11.345537183345800
2005-10-01	11.198823407572700
2006-01-01	10.809278693891300
2006-04-01	10.354424543765200
2006-07-01	9.970473324421400
2006-10-01	9.868812211248480
2007-01-01	9.099980769923540
2007-04-01	8.720273375030560
2007-07-01	8.530830709263330
2007-10-01	8.285391200394520
2008-01-01	7.814698312978940
2008-04-01	7.762729427046490
2008-07-01	7.279992821620760
2008-10-01	7.244391443677050
2009-01-01	7.631288611858430
2009-04-01	7.800107540723360
2009-07-01	7.981150262045020
2009-10-01	7.556196265879930
2010-01-01	7.466126800148580
2010-04-01	7.058942053222140
2010-07-01	6.723621823155570
2010-10-01	6.615209569089720
2011-01-01	6.184902817019900
2011-04-01	5.891744464892400
2011-07-01	5.752372692279830
2011-10-01	5.471583976386120
2012-01-01	5.461856331534620
2012-04-01	5.377516080728400
2012-07-01	5.355348813389250
2012-10-01	5.323146972736120
2013-01-01	5.345234572109590
2013-04-01	5.270185550086530
2013-07-01	5.173038497400120
2013-10-01	5.134320485815210
2014-01-01	5.106251816716770
2014-04-01	4.977333770206550
2014-07-01	4.935339734549690
2014-10-01	4.904057992782050
2015-01-01	4.742038827685720
2015-04-01	4.722136164753040
2015-07-01	4.460826249703410
2015-10-01	4.571704039271620
2016-01-01	4.325562431402110
2016-04-01	4.220827139062200
2016-07-01	4.060577962865320
2016-10-01	3.880899199089860
2017-01-01	3.913659707208270
2017-04-01	3.784296243663460
2017-07-01	3.676208981959380
2017-10-01	3.608455033759190
2018-01-01	3.476617663021950
2018-04-01	3.471372826601080