Quarter	Percent, Seasonally Adjusted
1970-01-01	31.2133306098314
1970-04-01	31.0311629977381
1970-07-01	31.0239843722051
1970-10-01	31.2471478347167
1971-01-01	30.9866744118315
1971-04-01	31.1911382390881
1971-07-01	31.5140031588603
1971-10-01	31.5607013382674
1972-01-01	31.5955343875811
1972-04-01	31.9011442865549
1972-07-01	31.7085015281445
1972-10-01	31.5452028821100
1973-01-01	31.0463644572164
1973-04-01	31.5491070852480
1973-07-01	31.4751442031821
1973-10-01	31.3886581646156
1974-01-01	31.8163628709240
1974-04-01	31.9729790411660
1974-07-01	32.4787714012214
1974-10-01	32.4987671491179
1975-01-01	32.7980173348279
1975-04-01	32.7110031308855
1975-07-01	32.5773352194551
1975-10-01	32.5299736357206
1976-01-01	32.3980405537323
1976-04-01	32.8238971995713
1976-07-01	32.4714664927518
1976-10-01	32.5252573130906
1977-01-01	32.3695911662836
1977-04-01	32.2268024875152
1977-07-01	32.1418641540651
1977-10-01	32.0293956468452
1978-01-01	31.8766038395818
1978-04-01	31.5697766288455
1978-07-01	31.8332561962376
1978-10-01	31.6683051394572
1979-01-01	31.5810973588539
1979-04-01	31.5079450490810
1979-07-01	31.4380596413498
1979-10-01	31.4356476396916
1980-01-01	31.6551036258701
1980-04-01	31.5823830833485
1980-07-01	31.2827647836286
1980-10-01	31.4456553745267
1981-01-01	31.4308187274040
1981-04-01	31.3048546513299
1981-07-01	31.3550815941906
1981-10-01	31.2202352864070
1982-01-01	31.0558676979157
1982-04-01	31.0850016542123
1982-07-01	31.2484232113514
1982-10-01	30.7680796684836
1983-01-01	30.3664978189990
1983-04-01	30.3672246001130
1983-07-01	30.3561165805535
1983-10-01	30.5210114873208
1984-01-01	30.7246683362166
1984-04-01	30.5949911154527
1984-07-01	30.4702137565763
1984-10-01	30.4419644074740
1985-01-01	30.6466397786608
1985-04-01	30.7933458911175
1985-07-01	30.8215648467555
1985-10-01	30.8772051665874
1986-01-01	30.7181882040684
1986-04-01	30.8615081310031
1986-07-01	30.7119826719548
1986-10-01	30.8997639954304
1987-01-01	30.9827116003653
1987-04-01	30.8589281638401
1987-07-01	30.8076770911499
1987-10-01	30.7380343110347
1988-01-01	30.7932344071217
1988-04-01	30.7284149474418
1988-07-01	30.6861479854644
1988-10-01	30.7337377787185
1989-01-01	30.5044268842534
1989-04-01	30.2255918855283
1989-07-01	30.2262642438608
1989-10-01	30.1087612222329
1990-01-01	29.8478990052974
1990-04-01	29.7500324576200
1990-07-01	29.6301934560623
1990-10-01	29.4448478177234
1991-01-01	29.2092517643269
1991-04-01	29.0831586983075
1991-07-01	28.9226654758244
1991-10-01	28.8038279307516
1992-01-01	28.6526675106419
1992-04-01	28.8038956170659
1992-07-01	28.7739841215864
1992-10-01	28.4239329184067
1993-01-01	28.7278074061146
1993-04-01	28.6496334163321
1993-07-01	28.5509915817398
1993-10-01	28.3603293798241
1994-01-01	28.5390087468573
1994-04-01	28.3818205309247
1994-07-01	28.5306516087034
1994-10-01	28.5828809341302
1995-01-01	28.5038518242714
1995-04-01	28.4931925232638
1995-07-01	28.3176319138840
1995-10-01	28.3043655597986
1996-01-01	28.1884634642743
1996-04-01	27.9659245761601
1996-07-01	27.7281916621113
1996-10-01	27.7833926083698
1997-01-01	27.4371481579106
1997-04-01	27.3517994261362
1997-07-01	27.3026367192027
1997-10-01	27.3513818054944
1998-01-01	27.2900287633644
1998-04-01	27.3272651136212
1998-07-01	27.3328178799257
1998-10-01	27.3955538322239
1999-01-01	27.4245291839506
1999-04-01	27.4282957581559
1999-07-01	27.4221226739026
1999-10-01	27.5064846291870
2000-01-01	27.6198930905465
2000-04-01	27.4282034306333
2000-07-01	27.4669621324836
2000-10-01	27.2486432212444
2001-01-01	27.1499520480257
2001-04-01	27.3271760100536
2001-07-01	27.4782115076803
2001-10-01	27.4567579283971
2002-01-01	27.5592320377861
2002-04-01	27.7657523863950
2002-07-01	27.6043164690352
2002-10-01	27.5754245939013
2003-01-01	27.6141568181315
2003-04-01	27.5566200554029
2003-07-01	27.6494591122834
2003-10-01	27.5017890414658
2004-01-01	27.6202603083202
2004-04-01	27.7585427836062
2004-07-01	27.4916648753706
2004-10-01	27.6025006688580
2005-01-01	27.4831553817465
2005-04-01	27.3416506149774
2005-07-01	27.0941037663187
2005-10-01	27.1376155277476
2006-01-01	26.9544654081715
2006-04-01	26.8640189958270
2006-07-01	26.7698768560624
2006-10-01	26.6883003575426
2007-01-01	26.4898148378089
2007-04-01	26.1787056310515
2007-07-01	26.3361583269881
2007-10-01	26.0774831670423
2008-01-01	26.2025913529596
2008-04-01	26.0402143274662
2008-07-01	26.0911265724459
2008-10-01	25.9401999593235
2009-01-01	25.9320842153906
2009-04-01	26.0528030370733
2009-07-01	25.7647712176565
2009-10-01	25.8933629291204
2010-01-01	25.8251837668779
2010-04-01	25.9765309124623
2010-07-01	25.6837322337795
2010-10-01	25.7120288893909
2011-01-01	25.4899718637182
2011-04-01	25.2779862677181
2011-07-01	25.7149074195458
2011-10-01	26.0602565052700
2012-01-01	26.1058205089552
2012-04-01	26.0280618502711
2012-07-01	25.9872994942719
2012-10-01	25.9251520896415
2013-01-01	25.3534504641588
2013-04-01	25.1620599019430
2013-07-01	25.0080169597869
2013-10-01	24.7701086613722
2014-01-01	24.6293298750178
2014-04-01	24.4390715228143
2014-07-01	24.3198526758256
2014-10-01	24.2318840803538
2015-01-01	24.1396796306465
2015-04-01	24.0722707359520
2015-07-01	23.8392644281754
2015-10-01	23.6175809838862
2016-01-01	23.3279125878004
2016-04-01	23.1465191100848
2016-07-01	22.9094262471426
2016-10-01	22.7662293808193
2017-01-01	22.7098907524707
2017-04-01	22.4953289392277
2017-07-01	22.2553283810217
2017-10-01	22.0272571504150
2018-01-01	21.6143709941006
2018-04-01	21.3307266282344
2018-07-01	21.1200751406611