Quarter	Percent, Seasonally Adjusted
1971-04-01	13.8381201044386
1971-07-01	13.6674259681093
1971-10-01	15.0375939849624
1972-01-01	14.4230769230769
1972-04-01	13.5021097046413
1972-07-01	14.3750000000000
1972-10-01	14.3153526970954
1973-01-01	12.9508196721311
1973-04-01	14.2617449664430
1973-07-01	14.0439932318105
1973-10-01	14.9565217391304
1974-01-01	15.7534246575342
1974-04-01	18.2310469314079
1974-07-01	18.4027777777778
1974-10-01	19.1780821917808
1975-01-01	22.9571984435798
1975-04-01	21.4285714285714
1975-07-01	21.0045662100457
1975-10-01	19.4162436548223
1976-01-01	19.3181818181818
1976-04-01	16.8122270742358
1976-07-01	17.1548117154812
1976-10-01	17.5473579262213
1977-01-01	17.3996175908222
1977-04-01	16.6516651665166
1977-07-01	17.7464788732394
1977-10-01	17.8916827852998
1978-01-01	16.7724388032638
1978-04-01	18.4991273996510
1978-07-01	18.3937823834197
1978-10-01	18.0884676145340
1979-01-01	17.9245283018868
1979-04-01	17.7196804647785
1979-07-01	16.8055555555556
1979-10-01	15.0774731823600
1980-01-01	15.3667054714785
1980-04-01	16.2665066026411
1980-07-01	16.7955801104972
1980-10-01	16.6842661034847
1981-01-01	16.9334021683015
1981-04-01	17.7472787505916
1981-07-01	17.9754020813623
1981-10-01	17.8763440860215
1982-01-01	18.2593091072230
1982-04-01	18.0993520518359
1982-07-01	18.4255319148936
1982-10-01	19.2276749798874
1983-01-01	19.2738509076864
1983-04-01	19.5140470766894
1983-07-01	21.1579699785561
1983-10-01	20.3710440160058
1984-01-01	20.3773584905660
1984-04-01	21.7659137577002
1984-07-01	24.2987979393246
1984-10-01	20.6801216477744
1985-01-01	18.8632414991313
1985-04-01	21.5296746958033
1985-07-01	20.7421249332621
1985-10-01	22.9589041095890
1986-01-01	24.2729306487696
1986-04-01	23.2342007434944
1986-07-01	20.9059233449477
1986-10-01	24.0111034004164
1987-01-01	25.0596089651884
1987-04-01	22.0617202889035
1987-07-01	23.2205623901582
1987-10-01	23.9306865540689
1988-01-01	23.6274300363170
1988-04-01	24.3011226062074
1988-07-01	22.7718639115007
1988-10-01	21.1500590783773
1989-01-01	21.3552758954501
1989-04-01	19.8328267477204
1989-07-01	23.2435715731930
1989-10-01	22.7703617721029
1990-01-01	21.5213707399736
1990-04-01	21.5904936014625
1990-07-01	20.7314865109542
1990-10-01	20.5960148122024
1991-01-01	20.8054871614492
1991-04-01	22.5788497217069
1991-07-01	22.9827983685050
1991-10-01	21.7048955837042
1992-01-01	23.2509205681220
1992-04-01	22.0536569786011
1992-07-01	23.4789777411377
1992-10-01	22.6490729914815
1993-01-01	23.1732445712474
1993-04-01	22.1832596432383
1993-07-01	21.8503937007874
1993-10-01	23.6671197704274
1994-01-01	23.6968160045083
1994-04-01	23.6093771674296
1994-07-01	24.6541903986981
1994-10-01	23.8661906650800
1995-01-01	23.0976863753213
1995-04-01	24.8508204873197
1995-07-01	25.2727734077645
1995-10-01	25.8297978537559
1996-01-01	25.9930582337061
1996-04-01	24.6401561356428
1996-07-01	24.2692213215426
1996-10-01	24.1153659718856
1997-01-01	24.8856956237753
1997-04-01	23.6879250609521
1997-07-01	23.1880597014925
1997-10-01	22.7591670439113
1998-01-01	21.7047353760446
1998-04-01	24.3888105312647
1998-07-01	22.9532473027290
1998-10-01	22.2016841240501
1999-01-01	24.9288799915710
1999-04-01	25.3403365848430
1999-07-01	24.4667129675563
1999-10-01	26.4156537207234
2000-01-01	25.7380842202684
2000-04-01	24.4393022427910
2000-07-01	23.7948717948718
2000-10-01	24.6295712484237
2001-01-01	25.7935861956699
2001-04-01	24.6222851746931
2001-07-01	24.4536372151108
2001-10-01	24.6863943390158
2002-01-01	26.6091112310183
2002-04-01	26.4307931570762
2002-07-01	27.5509401305955
2002-10-01	28.4077532763086
2003-01-01	27.7636646726215
2003-04-01	28.1496710526316
2003-07-01	28.9354105809802
2003-10-01	28.3931977113795
2004-01-01	28.2589536094864
2004-04-01	28.1105652907105
2004-07-01	28.4949622166247
2004-10-01	26.6210045662100
2005-01-01	26.6726740256815
2005-04-01	26.8714011516315
2005-07-01	28.7159883067236
2005-10-01	26.8807477762702
2006-01-01	27.6836581709145
2006-04-01	25.9131025118805
2006-07-01	24.6675047971945
2006-10-01	26.7270979261090
2007-01-01	26.6875340228634
2007-04-01	26.3898282158799
2007-07-01	26.0776837071027
2007-10-01	23.5892582515083
2008-01-01	24.4467163820063
2008-04-01	24.9515646098750
2008-07-01	22.9322881163372
2008-10-01	23.2481731150513
2009-01-01	25.1923421005547
2009-04-01	24.6269592476489
2009-07-01	26.0560700241025
2009-10-01	26.5537476660443
2010-01-01	23.6675974262474
2010-04-01	24.0059171597633
2010-07-01	23.9623980134800
2010-10-01	23.9136843346501
2011-01-01	23.4636551249713
2011-04-01	21.9496309161963
2011-07-01	23.6071765816808
2011-10-01	23.9061406813412
2012-01-01	23.0083917691689
2012-04-01	22.9503625209147
2012-07-01	22.9595259391771
2012-10-01	22.9144002290295
2013-01-01	22.9260249047592
2013-04-01	23.7161584497008
2013-07-01	22.8977518374406
2013-10-01	20.7644680959934
2014-01-01	21.1819188563375
2014-04-01	22.2959801907170
2014-07-01	23.0719931638539
2014-10-01	25.2720053627598
2015-01-01	25.7192498339210
2015-04-01	26.5403083143796
2015-07-01	26.5714558654948
2015-10-01	27.3209549071618
2016-01-01	28.0071634663218
2016-04-01	26.9680436477007
2016-07-01	27.8135371618224
2016-10-01	27.7595414237421
2017-01-01	27.5893631371038
2017-04-01	26.3908252754666
2017-07-01	26.9698230047599
2017-10-01	25.7221576477679
2018-01-01	27.7145061028177
2018-04-01	27.2545090180361