Quarter	Percent, Seasonally Adjusted
1978-01-01	65.4646248402147
1978-04-01	65.6368023225905
1978-07-01	65.5843970460169
1978-10-01	65.6800861259025
1979-01-01	65.7032222937361
1979-04-01	65.7524318108250
1979-07-01	65.8132459602294
1979-10-01	65.7505640252521
1980-01-01	65.6110298656174
1980-04-01	65.6571955010700
1980-07-01	65.8084928293680
1980-10-01	65.7363312551223
1981-01-01	65.7975957548014
1981-04-01	65.7865677971300
1981-07-01	65.7193601257210
1981-10-01	65.7680386890730
1982-01-01	65.8913629927098
1982-04-01	65.9033905534207
1982-07-01	65.7630756072269
1982-10-01	66.1456834080540
1983-01-01	66.6230120855195
1983-04-01	66.6038769885302
1983-07-01	66.5159105234418
1983-10-01	66.4118120798484
1984-01-01	66.3202309482640
1984-04-01	66.3638815429011
1984-07-01	66.3896375942207
1984-10-01	66.3754857240335
1985-01-01	66.2614219274169
1985-04-01	66.0995219717337
1985-07-01	66.0385913673636
1985-10-01	65.9751213820564
1986-01-01	66.0020663439878
1986-04-01	65.9285142558214
1986-07-01	65.9764902488680
1986-10-01	65.8482200196272
1987-01-01	65.8392936017072
1987-04-01	65.8945622944936
1987-07-01	65.9116688331667
1987-10-01	65.9262416769531
1988-01-01	65.9344348029737
1988-04-01	65.9765152851732
1988-07-01	66.0179616524084
1988-10-01	65.9851335196988
1989-01-01	66.1133492434737
1989-04-01	66.3578451369757
1989-07-01	66.4064267888082
1989-10-01	66.5507222095567
1990-01-01	66.6960114783232
1990-04-01	66.8206028125720
1990-07-01	66.9172541992428
1990-10-01	67.0977912086397
1991-01-01	67.3011654323903
1991-04-01	67.4187521194475
1991-07-01	67.5516010011592
1991-10-01	67.6176295084516
1992-01-01	67.7136582364220
1992-04-01	67.6004799817846
1992-07-01	67.5868931075636
1992-10-01	67.7540943685250
1993-01-01	67.5425881813837
1993-04-01	67.5197834815970
1993-07-01	67.5270613053383
1993-10-01	67.6717604823177
1994-01-01	67.5031154101597
1994-04-01	67.4910705685526
1994-07-01	67.3924087385779
1994-10-01	67.2839119264302
1995-01-01	67.2829376962861
1995-04-01	67.2418608432447
1995-07-01	67.4370288271106
1995-10-01	67.3433784706898
1996-01-01	67.3402168938346
1996-04-01	67.5335750127077
1996-07-01	67.7338827464778
1996-10-01	67.7032484774090
1997-01-01	67.9032720852618
1997-04-01	67.9901983145266
1997-07-01	67.9252678981013
1997-10-01	67.8353642603285
1998-01-01	67.8413845011669
1998-04-01	67.8219363688875
1998-07-01	67.6388970252163
1998-10-01	67.5485626317184
1999-01-01	67.5367664055344
1999-04-01	67.5009028341041
1999-07-01	67.4110495156559
1999-10-01	67.3040568762956
2000-01-01	67.2159012547333
2000-04-01	67.1939819979197
2000-07-01	67.1707235198334
2000-10-01	67.3412844168588
2001-01-01	67.2353833771234
2001-04-01	67.0753160386271
2001-07-01	66.9110395185473
2001-10-01	66.8549727847554
2002-01-01	66.6702598628958
2002-04-01	66.4538079906584
2002-07-01	66.5111998923854
2002-10-01	66.4253590461228
2003-01-01	66.3686142506374
2003-04-01	66.4340218351522
2003-07-01	66.2783250073180
2003-10-01	66.2952839745202
2004-01-01	66.2267874184412
2004-04-01	66.1807097509804
2004-07-01	66.2790039396987
2004-10-01	66.2317024254300
2005-01-01	66.3367403623166
2005-04-01	66.3821251101730
2005-07-01	66.5532277850646
2005-10-01	66.6040000234632
2006-01-01	66.6482344479464
2006-04-01	66.6778491040420
2006-07-01	66.8344622436545
2006-10-01	66.9266490924408
2007-01-01	66.9760327275332
2007-04-01	67.1220956599444
2007-07-01	67.0669387478222
2007-10-01	67.1859682886855
2008-01-01	67.1630963169150
2008-04-01	67.2440680358536
2008-07-01	67.1574444111837
2008-10-01	67.1924338019228
2009-01-01	67.2037130221195
2009-04-01	67.1542408659587
2009-07-01	67.1939213970061
2009-10-01	67.0712188207527
2010-01-01	67.1902181064104
2010-04-01	67.1431015501550
2010-07-01	67.2764975617997
2010-10-01	67.3059146547770
2011-01-01	67.2679894863513
2011-04-01	67.0127138034166
2011-07-01	66.9132527829695
2011-10-01	67.0844590875868
2012-01-01	66.9983034281528
2012-04-01	67.0857045596328
2012-07-01	67.0824944717210
2012-10-01	67.1517616936859
2013-01-01	67.5589994882107
2013-04-01	67.6336640536396
2013-07-01	67.6811610459732
2013-10-01	68.0290871816508
2014-01-01	67.9176644845655
2014-04-01	68.0461683787573
2014-07-01	68.1216328171900
2014-10-01	68.3335276370202
2015-01-01	68.3454017998907
2015-04-01	68.3801475948517
2015-07-01	68.5936306712904
2015-10-01	68.7313364671554
2016-01-01	69.0677953001976
2016-04-01	69.1500321474184
2016-07-01	69.5003634740286
2016-10-01	69.6402972005853
2017-01-01	69.6639539370553
2017-04-01	69.9924622035645
2017-07-01	70.2480551980422
2017-10-01	70.4876176822168
2018-01-01	70.9791668441442
2018-04-01	71.2877903565076
2018-07-01	71.5465275205961