Quarter	Percent, Seasonally Adjusted
1978-04-01	91.7586046864432
1978-07-01	91.3892042954562
1978-10-01	91.6825948301515
1979-01-01	91.7845846678188
1979-04-01	91.9070380708455
1979-07-01	91.8669177384140
1979-10-01	91.8072352884629
1980-01-01	91.5600983199028
1980-04-01	91.3906921050052
1980-07-01	91.6554256928382
1980-10-01	91.8231557256673
1981-01-01	91.6714776131486
1981-04-01	91.4948263048671
1981-07-01	91.3628460833408
1981-10-01	90.9511885865167
1982-01-01	90.8994933496494
1982-04-01	90.6148681014468
1982-07-01	89.8276020941776
1982-10-01	88.8061196607330
1983-01-01	87.9082539025676
1983-04-01	87.2981793313130
1983-07-01	87.4736539340702
1983-10-01	87.6765962248468
1984-01-01	88.1493206659598
1984-04-01	88.2619045775502
1984-07-01	88.0488357335330
1984-10-01	88.1561681976591
1985-01-01	88.0998542752581
1985-04-01	87.6526324968441
1985-07-01	88.2872513397598
1985-10-01	88.6919656102387
1986-01-01	88.8107767446696
1986-04-01	88.4797903133940
1986-07-01	88.4028760023798
1986-10-01	88.2237275593160
1987-01-01	88.1071341409926
1987-04-01	87.9318659557668
1987-07-01	88.1459013542356
1987-10-01	87.8303573428063
1988-01-01	88.5097089389130
1988-04-01	88.7353232111145
1988-07-01	88.3614070197360
1988-10-01	88.8734186173226
1989-01-01	88.5864640412325
1989-04-01	89.0297953526340
1989-07-01	89.0446793406305
1989-10-01	89.5715683179472
1990-01-01	89.2775070236265
1990-04-01	89.2991884982099
1990-07-01	88.6810528370575
1990-10-01	87.6722506666061
1991-01-01	87.0325192855107
1991-04-01	86.4044764952543
1991-07-01	85.6356547356449
1991-10-01	85.1935007211186
1992-01-01	85.0063704485248
1992-04-01	84.5386087462702
1992-07-01	84.2015243784404
1992-10-01	83.8416762529682
1993-01-01	83.8958734433268
1993-04-01	83.6861896441990
1993-07-01	83.9064034571810
1993-10-01	83.9198736208482
1994-01-01	83.8018508456999
1994-04-01	84.3558386225006
1994-07-01	84.7697147205382
1994-10-01	84.6598194182468
1995-01-01	85.0192915250586
1995-04-01	85.3080973600093
1995-07-01	85.4615946514321
1995-10-01	85.5904207358063
1996-01-01	85.6752029029855
1996-04-01	85.4766041997420
1996-07-01	85.2934320614058
1996-10-01	85.1722907787358
1997-01-01	85.0568489717696
1997-04-01	84.8685026778580
1997-07-01	85.0056015201712
1997-10-01	85.0619052065692
1998-01-01	85.1042356519498
1998-04-01	85.0334199506522
1998-07-01	84.9545620052643
1998-10-01	85.1345875256913
1999-01-01	85.4438734500776
1999-04-01	85.4206342604105
1999-07-01	85.3426008034786
1999-10-01	85.3515730583482
2000-01-01	85.2754666793944
2000-04-01	85.6585136771533
2000-07-01	85.8206285399016
2000-10-01	85.5674704047371
2001-01-01	85.2022612377864
2001-04-01	85.3706981098242
2001-07-01	85.2438921003970
2001-10-01	85.2400935363849
2002-01-01	85.2564785235678
2002-04-01	85.6234371693348
2002-07-01	85.7036502560897
2002-10-01	85.8659050552875
2003-01-01	85.8803508949565
2003-04-01	85.4360045469900
2003-07-01	85.6283814407597
2003-10-01	85.9651379780965
2004-01-01	86.2139304218454
2004-04-01	86.1944207706177
2004-07-01	86.2159200878604
2004-10-01	86.6413630332695
2005-01-01	86.8336621227677
2005-04-01	87.0484381459032
2005-07-01	87.1902032932816
2005-10-01	86.9772661201285
2006-01-01	86.8424477033496
2006-04-01	87.0688802562941
2006-07-01	87.4920217738179
2006-10-01	87.4830008890936
2007-01-01	87.6121460696325
2007-04-01	88.0900791159024
2007-07-01	88.4137162655626
2007-10-01	88.3022509195584
2008-01-01	88.5697274765016
2008-04-01	88.2656806114856
2008-07-01	88.2460469986266
2008-10-01	88.0832588433176
2009-01-01	86.5417290200194
2009-04-01	86.0128661617847
2009-07-01	86.2415115459356
2009-10-01	86.3205964162586
2010-01-01	86.7865520324625
2010-04-01	86.8397273584870
2010-07-01	87.3609145274675
2010-10-01	87.6961423346337
2011-01-01	87.7692589466154
2011-04-01	87.5029721611962
2011-07-01	87.1988699952970
2011-10-01	86.9871687358545
2012-01-01	86.9148105335256
2012-04-01	86.8736281138592
2012-07-01	86.6046811963362
2012-10-01	86.4728583366694
2013-01-01	86.3998509082108
2013-04-01	86.2476658805207
2013-07-01	86.1540462535040
2013-10-01	85.7639208169567
2014-01-01	85.7848268780996
2014-04-01	85.8996067597598
2014-07-01	85.6417379086595
2014-10-01	85.6271992705004
2015-01-01	86.1891775784835
2015-04-01	86.2542480508582
2015-07-01	86.0869368881052
2015-10-01	86.1824929234322
2016-01-01	86.3733810547358
2016-04-01	86.4579181726736
2016-07-01	86.4269895307114
2016-10-01	86.6019691056030
2017-01-01	86.3610116844712
2017-04-01	86.7836849347871
2017-07-01	86.5738545769143
2017-10-01	86.8527788172529
2018-01-01	86.7835798838821
2018-04-01	86.9631248594559
2018-07-01	86.9447891955002