Quarter	Percent, Seasonally Adjusted
1978-04-01	70.7368900952511
1978-07-01	69.3018660033577
1978-10-01	67.8860377977241
1979-01-01	67.3417702603520
1979-04-01	67.3636020016414
1979-07-01	67.7715440600557
1979-10-01	67.6663054728635
1980-01-01	67.4436858579030
1980-04-01	67.4924696552729
1980-07-01	66.9672973533618
1980-10-01	66.0780369792549
1981-01-01	65.5878737169864
1981-04-01	65.0887991188908
1981-07-01	65.5362892620044
1981-10-01	64.8030263567899
1982-01-01	64.6888690089436
1982-04-01	63.5779994663478
1982-07-01	63.2163697969123
1982-10-01	61.4022973848564
1983-01-01	60.0037434549758
1983-04-01	58.6011113838921
1983-07-01	58.4063820576044
1983-10-01	58.1131623908271
1984-01-01	58.4627044182046
1984-04-01	58.7777011677308
1984-07-01	58.1211283388987
1984-10-01	57.5532873553412
1985-01-01	57.1098710619914
1985-04-01	55.8677513937865
1985-07-01	56.6903701192455
1985-10-01	58.5319530482382
1986-01-01	58.4308762212638
1986-04-01	58.7996588059301
1986-07-01	57.7965720283949
1986-10-01	57.6173077367207
1987-01-01	57.5446265266943
1987-04-01	57.4389695699656
1987-07-01	56.7604913861126
1987-10-01	57.0768948189941
1988-01-01	57.9173522871755
1988-04-01	57.6655972886377
1988-07-01	57.1265720146528
1988-10-01	57.0849046052197
1989-01-01	57.8348511915474
1989-04-01	58.8971254579249
1989-07-01	59.3021662848644
1989-10-01	59.2063975483529
1990-01-01	57.9390746780839
1990-04-01	58.3265317610244
1990-07-01	59.5265019532025
1990-10-01	59.2800512125227
1991-01-01	57.6062315646255
1991-04-01	56.0844367209018
1991-07-01	54.6373429324018
1991-10-01	54.8588159641283
1992-01-01	55.1736198592467
1992-04-01	54.6559226643580
1992-07-01	54.4496164752347
1992-10-01	52.8932250288721
1993-01-01	52.1133398947628
1993-04-01	51.9019398443941
1993-07-01	51.6677933186800
1993-10-01	52.5712166818511
1994-01-01	53.6978046996175
1994-04-01	54.5894614674430
1994-07-01	54.4777989674428
1994-10-01	54.5689641084247
1995-01-01	55.6662725487574
1995-04-01	55.6189658812315
1995-07-01	55.9782068789623
1995-10-01	55.6643351277225
1996-01-01	55.0114033126465
1996-04-01	55.1797296998300
1996-07-01	54.8449903097932
1996-10-01	55.0795589828688
1997-01-01	55.7167492612074
1997-04-01	55.2610473255639
1997-07-01	55.0121396841947
1997-10-01	55.7379083568350
1998-01-01	55.5142877594523
1998-04-01	56.4043740075268
1998-07-01	56.6332627630115
1998-10-01	56.1263661088406
1999-01-01	55.9573149558629
1999-04-01	56.0615984617078
1999-07-01	57.1016131562405
1999-10-01	57.0610624791649
2000-01-01	56.7327849648797
2000-04-01	57.3858233953967
2000-07-01	58.2558204457104
2000-10-01	58.0614716408233
2001-01-01	57.2206483061055
2001-04-01	57.0201997363545
2001-07-01	56.9466994681707
2001-10-01	57.5557876989955
2002-01-01	58.3355045791066
2002-04-01	58.9377034214598
2002-07-01	58.5390775428668
2002-10-01	59.4224099840206
2003-01-01	60.7132787084183
2003-04-01	60.4841731565411
2003-07-01	60.8267568346693
2003-10-01	61.1220157969961
2004-01-01	61.4953143403338
2004-04-01	62.2075351183021
2004-07-01	62.4035074728845
2004-10-01	62.4220426490506
2005-01-01	62.7485237108782
2005-04-01	63.7499013757313
2005-07-01	64.0453297769518
2005-10-01	64.4616408292499
2006-01-01	64.5858631388915
2006-04-01	64.5117519872142
2006-07-01	65.4347858127743
2006-10-01	65.0770978865938
2007-01-01	65.3592817102553
2007-04-01	66.0394416350833
2007-07-01	66.2053490299752
2007-10-01	65.3854058739244
2008-01-01	64.5680420618944
2008-04-01	65.7422476803092
2008-07-01	66.1168057243182
2008-10-01	65.8796427078513
2009-01-01	66.7194650275974
2009-04-01	66.5483211330990
2009-07-01	66.7350644038621
2009-10-01	66.9101852213256
2010-01-01	67.5120985636018
2010-04-01	68.1202793744582
2010-07-01	69.0028820560372
2010-10-01	69.6292223028814
2011-01-01	69.7526612434094
2011-04-01	69.1603154469972
2011-07-01	68.6953083233190
2011-10-01	68.5318348102780
2012-01-01	68.4180920868790
2012-04-01	69.1736273911775
2012-07-01	69.0678412488214
2012-10-01	69.6521024700300
2013-01-01	69.1276878784953
2013-04-01	69.2687337545962
2013-07-01	68.8950042078330
2013-10-01	68.6212654233201
2014-01-01	68.8450135774641
2014-04-01	68.9504694261920
2014-07-01	69.6695228108385
2014-10-01	68.7358818416504
2015-01-01	68.9932250277922
2015-04-01	69.6051089922997
2015-07-01	68.9956418153262
2015-10-01	69.4663528012176
2016-01-01	69.4755122431920
2016-04-01	68.7442803869687
2016-07-01	67.5022652327997
2016-10-01	68.1904863672710
2017-01-01	68.5123148820641
2017-04-01	69.3462634911761
2017-07-01	69.8995434368080
2017-10-01	70.5524727793144
2018-01-01	70.3817770873296
2018-04-01	69.1117961680820
2018-07-01	69.7148311471814