Quarter	Percent, Seasonally Adjusted
1960-01-01	22.0338983050847
1960-04-01	22.9067930489731
1960-07-01	21.3432835820896
1960-10-01	20.9064327485380
1961-01-01	21.6374269005848
1961-04-01	23.7458193979933
1961-07-01	23.9171374764595
1961-10-01	25.6214149139579
1962-01-01	24.2634315424610
1962-04-01	22.4755700325733
1962-07-01	21.2962962962963
1962-10-01	21.2893553223388
1963-01-01	23.2169954476480
1963-04-01	22.4817518248175
1963-07-01	23.3918128654971
1963-10-01	23.2323232323232
1964-01-01	23.0458221024259
1964-04-01	22.9140722291407
1964-07-01	22.3970944309927
1964-10-01	21.9954648526077
1965-01-01	22.8794642857143
1965-04-01	22.2222222222222
1965-07-01	21.6683621566633
1965-10-01	22.6890756302521
1966-01-01	23.3485193621868
1966-04-01	25.7471264367816
1966-07-01	24.4369369369369
1966-10-01	25.2491694352159
1967-01-01	23.9393939393939
1967-04-01	24.9496981891348
1967-07-01	25.0000000000000
1967-10-01	26.2327416173570
1968-01-01	25.1089799476896
1968-04-01	23.9852398523985
1968-07-01	25.7561869844180
1968-10-01	25.6221198156682
1969-01-01	28.3707865168539
1969-04-01	26.0323159784560
1969-07-01	26.4279624893436
1969-10-01	26.1373035566584
1970-01-01	27.1534044298605
1970-04-01	27.7297721916732
1970-07-01	27.0291568163909
1970-10-01	27.0164447924824
1971-01-01	26.7540478026214
1971-04-01	26.9818181818182
1971-07-01	26.7391304347826
1971-10-01	27.9530447542186
1972-01-01	28.7106446776612
1972-04-01	30.2250803858521
1972-07-01	30.2439024390244
1972-10-01	30.6379821958457
1973-01-01	30.6079664570231
1973-04-01	28.9473684210526
1973-07-01	28.0436099333737
1973-10-01	28.2023089609676
1974-01-01	27.0973963355834
1974-04-01	25.9304703476483
1974-07-01	25.0185048112509
1974-10-01	24.8214285714286
1975-01-01	27.7331189710611
1975-04-01	28.0290791599354
1975-07-01	28.5883280757098
1975-10-01	28.2536151279199
1976-01-01	28.9065194894791
1976-04-01	26.9756585528510
1976-07-01	26.9984447900467
1976-10-01	26.8065967016492
1977-01-01	25.0603702709954
1977-04-01	25.1252306881097
1977-07-01	26.1501850872554
1977-10-01	27.0776004402862
1978-01-01	25.9404388714734
1978-04-01	27.1219995050730
1978-07-01	26.1162790697674
1978-10-01	25.3731343283582
1979-01-01	27.3236282194849
1979-04-01	24.8200699156899
1979-07-01	24.7965825874695
1979-10-01	24.7780925401322
1980-01-01	25.3345388788427
1980-04-01	24.6167557932264
1980-07-01	22.5263489067170
1980-10-01	23.7022839801949
1981-01-01	24.7439709283119
1981-04-01	22.8819695872556
1981-07-01	23.4949465358137
1981-10-01	23.9452360994691
1982-01-01	22.5070135169600
1982-04-01	23.4304788804725
1982-07-01	24.8737709274515
1982-10-01	25.1992561105207
1983-01-01	26.9445218845832
1983-04-01	25.3285870755750
1983-07-01	25.8181818181818
1983-10-01	25.8584534731324
1984-01-01	25.6231186032511
1984-04-01	26.1737224593379
1984-07-01	24.3199514612195
1984-10-01	25.8511192087454
1985-01-01	26.3738467709587
1985-04-01	24.7856448333775
1985-07-01	23.2269655231414
1985-10-01	22.9527394395650
1986-01-01	23.1954855554620
1986-04-01	24.7512760619431
1986-07-01	23.5933609958506
1986-10-01	23.6789027833804
1987-01-01	24.1490416391276
1987-04-01	23.4728783189445
1987-07-01	25.5003588230604
1987-10-01	24.9249029232911
1988-01-01	24.4719696427293
1988-04-01	24.2937440689101
1988-07-01	24.2844876931883
1988-10-01	23.4928043562816
1989-01-01	25.1968008060961
1989-04-01	24.4681467741001
1989-07-01	24.1877660766301
1989-10-01	25.3598792663107
1990-01-01	25.5811310031259
1990-04-01	27.5348214828782
1990-07-01	26.0167428605355
1990-10-01	25.6507528889926
1991-01-01	26.0941664198993
1991-04-01	26.3548897819998
1991-07-01	26.2841332852159
1991-10-01	25.7507507507508
1992-01-01	25.7978876897328
1992-04-01	25.7503334815474
1992-07-01	24.9517248577840
1992-10-01	24.5339299030574
1993-01-01	24.4142597455060
1993-04-01	24.3083587673526
1993-07-01	24.6369367265935
1993-10-01	24.7694886839899
1994-01-01	25.2611363529908
1994-04-01	24.8053241579138
1994-07-01	23.7492542401773
1994-10-01	22.8889717149128
1995-01-01	23.6496759222213
1995-04-01	23.7222459022746
1995-07-01	23.5880398671096
1995-10-01	23.7636555855750
1996-01-01	23.8601647395491
1996-04-01	24.0871891721750
1996-07-01	24.5392437241818
1996-10-01	24.4828116588480
1997-01-01	24.3215507411631
1997-04-01	24.0654205607477
1997-07-01	23.6711577021845
1997-10-01	23.8661053775122
1998-01-01	23.4117268041237
1998-04-01	23.3785917271866
1998-07-01	23.7478965886492
1998-10-01	24.4254126440361
1999-01-01	23.4587121683896
1999-04-01	23.8370819908030
1999-07-01	23.0672833059824
1999-10-01	22.3001645449034
2000-01-01	22.2910818997860
2000-04-01	22.6986686082796
2000-07-01	22.2042014210689
2000-10-01	22.4043579299833
2001-01-01	23.1871223171494
2001-04-01	22.6078270668989
2001-07-01	23.0571361758516
2001-10-01	21.4618933477667
2002-01-01	21.6739775349274
2002-04-01	21.8696461824953
2002-07-01	21.4848499586596
2002-10-01	20.5555555555556
2003-01-01	20.6016218838805
2003-04-01	19.9835625710073
2003-07-01	21.6651745747538
2003-10-01	22.4005180974311
2004-01-01	22.5218230159290
2004-04-01	21.9468288292244
2004-07-01	21.6921577765538
2004-10-01	21.6315516346653
2005-01-01	22.2692563081009
2005-04-01	21.4441969612600
2005-07-01	21.2647644588173
2005-10-01	20.7237462737255
2006-01-01	20.8646513414166
2006-04-01	19.9614769463601
2006-07-01	20.9500971451576
2006-10-01	21.0644969912704
2007-01-01	21.2055012164242
2007-04-01	21.7782120175867
2007-07-01	22.1800598811983
2007-10-01	21.9383314683576
2008-01-01	21.7273205210585
2008-04-01	21.5712604693016
2008-07-01	21.0239361702128
2008-10-01	20.7738416814592
2009-01-01	22.0083276294775
2009-04-01	23.4766519271176
2009-07-01	22.6016486490666
2009-10-01	22.6435863025679
2010-01-01	22.3310179780528
2010-04-01	21.6358067659752
2010-07-01	22.4829621302607
2010-10-01	22.5015112535673
2011-01-01	22.3967727278986
2011-04-01	22.2859958450967
2011-07-01	21.6121097445601
2011-10-01	21.0676461585552
2012-01-01	21.2163690915351
2012-04-01	20.9681295966928
2012-07-01	22.1212417741028
2012-10-01	22.6586979929105
2013-01-01	23.6676605447120
2013-04-01	23.6481003766547
2013-07-01	23.0500649591685
2013-10-01	23.5203896453618
2014-01-01	22.9837721805476
2014-04-01	22.9647602272330
2014-07-01	22.8812767250041
2014-10-01	22.9650688602521
2015-01-01	23.2721760966450
2015-04-01	23.0816513556405
2015-07-01	23.3048245614035
2015-10-01	24.2117845745556
2016-01-01	24.2868559118863
2016-04-01	24.2811281816097
2016-07-01	23.6867152112838
2016-10-01	23.0819056978848
2017-01-01	22.8073019681593
2017-04-01	23.6933350455888
2017-07-01	23.8666127211942
2017-10-01	23.5670753640764
2018-01-01	23.2457496136012
2018-04-01	22.1450311609256