Quarter	Percent, Seasonally Adjusted
1978-01-01	80.6212899024520
1978-04-01	80.6785410438957
1978-07-01	80.5076788033002
1978-10-01	80.5140313268498
1979-01-01	80.4851593264698
1979-04-01	80.8131228764816
1979-07-01	80.7725998404956
1979-10-01	80.6704965346064
1980-01-01	80.5185053872710
1980-04-01	80.5520603517246
1980-07-01	80.5885369272062
1980-10-01	80.5614680146976
1981-01-01	80.6784520714928
1981-04-01	80.3795419975488
1981-07-01	80.3028775629784
1981-10-01	80.0320034237791
1982-01-01	80.1279482032699
1982-04-01	80.1447281584408
1982-07-01	79.8857165723520
1982-10-01	80.0613971196341
1983-01-01	80.0303124036422
1983-04-01	80.0493835330929
1983-07-01	79.8538932425916
1983-10-01	79.7242348191249
1984-01-01	79.6063333201372
1984-04-01	79.4567702312051
1984-07-01	79.3407692184500
1984-10-01	79.3552571232276
1985-01-01	79.1716452302104
1985-04-01	79.0071488492413
1985-07-01	78.8749251647357
1985-10-01	78.6714733041596
1986-01-01	78.6402266445730
1986-04-01	78.5521531905233
1986-07-01	78.5270678476311
1986-10-01	78.3107309766838
1987-01-01	78.1547587412982
1987-04-01	77.9915579981404
1987-07-01	78.2207629266200
1987-10-01	78.0974883175596
1988-01-01	78.0538360602861
1988-04-01	78.2945924691841
1988-07-01	78.2345894762811
1988-10-01	78.2142735061956
1989-01-01	78.2408155676469
1989-04-01	78.3435620137791
1989-07-01	78.3544810546395
1989-10-01	78.4853853651858
1990-01-01	78.5064899194151
1990-04-01	78.7550065874917
1990-07-01	78.7481472586071
1990-10-01	79.0001273360867
1991-01-01	79.0757589010212
1991-04-01	79.2085768503449
1991-07-01	79.2282972287542
1991-10-01	79.3421725711889
1992-01-01	79.5985550970021
1992-04-01	79.2844476385698
1992-07-01	79.2786481569164
1992-10-01	79.4723167124087
1993-01-01	79.3602049732320
1993-04-01	79.2514338359440
1993-07-01	79.1077596049685
1993-10-01	79.1228815207327
1994-01-01	78.8029414870857
1994-04-01	78.7357267178431
1994-07-01	78.5903632389096
1994-10-01	78.4247315237936
1995-01-01	78.3165257943440
1995-04-01	78.2604561260955
1995-07-01	78.5041897584093
1995-10-01	78.1673221509860
1996-01-01	78.1262367466369
1996-04-01	78.2103006055368
1996-07-01	78.5146704970518
1996-10-01	78.4551171897327
1997-01-01	78.6523358869250
1997-04-01	78.6717642608940
1997-07-01	78.2573330085522
1997-10-01	78.0449504412723
1998-01-01	77.8289510612554
1998-04-01	77.5136549004869
1998-07-01	77.1811596155528
1998-10-01	77.0613056670912
1999-01-01	76.9437923718574
1999-04-01	76.5486644367454
1999-07-01	76.6031530970593
1999-10-01	76.6269384394102
2000-01-01	76.3200463706215
2000-04-01	76.2601770208222
2000-07-01	76.2396572427009
2000-10-01	76.4118553200289
2001-01-01	76.1154924240358
2001-04-01	75.6916241490203
2001-07-01	75.4688189145702
2001-10-01	74.9783515988337
2002-01-01	75.0488925394098
2002-04-01	74.6295945786181
2002-07-01	74.6963327045732
2002-10-01	74.4681729728042
2003-01-01	74.4652880417299
2003-04-01	74.3734360295714
2003-07-01	74.3809891754723
2003-10-01	74.4549727285803
2004-01-01	74.3701700628996
2004-04-01	74.4555721578239
2004-07-01	74.4008339974508
2004-10-01	74.5624917499346
2005-01-01	74.5781174779218
2005-04-01	74.6363530822004
2005-07-01	74.9646987533418
2005-10-01	74.9903057930152
2006-01-01	74.9742663289916
2006-04-01	75.2107987809778
2006-07-01	75.2701525025124
2006-10-01	75.2972679171701
2007-01-01	75.5459555694813
2007-04-01	75.8619849389220
2007-07-01	75.7930184684382
2007-10-01	75.7033409251283
2008-01-01	75.6651710430089
2008-04-01	75.6215152124048
2008-07-01	75.4582264082080
2008-10-01	75.3723297793219
2009-01-01	74.8660232814161
2009-04-01	74.0884623403728
2009-07-01	73.6852946476872
2009-10-01	73.8060476213801
2010-01-01	73.9836516339916
2010-04-01	73.7595653800515
2010-07-01	73.8447042397342
2010-10-01	73.9336176180268
2011-01-01	74.2060412636216
2011-04-01	74.0566180421956
2011-07-01	74.0073789198148
2011-10-01	74.0484034421707
2012-01-01	74.0178416632098
2012-04-01	73.9832247479656
2012-07-01	74.1058583028830
2012-10-01	74.2236182730389
2013-01-01	74.1413137163975
2013-04-01	74.3553638237466
2013-07-01	74.4275077696737
2013-10-01	74.6220268896664
2014-01-01	74.8159518701174
2014-04-01	74.8684421442212
2014-07-01	74.9297752702532
2014-10-01	74.9574584285766
2015-01-01	75.0372341075026
2015-04-01	75.1324920631265
2015-07-01	75.2563086408142
2015-10-01	75.4193522686175
2016-01-01	75.5367711633287
2016-04-01	75.8056616634630
2016-07-01	75.9019478230194
2016-10-01	76.0711673499188
2017-01-01	76.1675607201243
2017-04-01	76.2453145679049
2017-07-01	76.4017951394525
2017-10-01	76.6627076790889
2018-01-01	77.0912691548446
2018-04-01	77.3363506296432
2018-07-01	77.4877693172824