Quarter	Percent, Seasonally Adjusted
1978-01-01	49.0154859201904
1978-04-01	49.4215083048288
1978-07-01	49.4346948900046
1978-10-01	49.6195822884565
1979-01-01	49.7745839344224
1979-04-01	49.6689787495774
1979-07-01	49.7798676994911
1979-10-01	49.7908556552430
1980-01-01	49.6971715632993
1980-04-01	49.8535232727758
1980-07-01	50.0629603085800
1980-10-01	49.7340080560423
1981-01-01	49.7083255543919
1981-04-01	49.9226269422341
1981-07-01	49.9549405894674
1981-10-01	50.2924686177749
1982-01-01	50.4035841071338
1982-04-01	50.3414269708757
1982-07-01	50.2732618751808
1982-10-01	50.8446783139456
1983-01-01	51.6124633504688
1983-04-01	51.5565249177079
1983-07-01	51.5919725351416
1983-10-01	51.5254850404199
1984-01-01	51.3760251602231
1984-04-01	51.6128894051245
1984-07-01	51.7678359391309
1984-10-01	51.8242932510181
1985-01-01	51.7719332735878
1985-04-01	51.6502476593199
1985-07-01	51.6651775808690
1985-10-01	51.5211559039744
1986-01-01	51.7287490773775
1986-04-01	51.5864027360516
1986-07-01	51.6616927360881
1986-10-01	51.5957435878525
1987-01-01	51.6507428957930
1987-04-01	51.8071483537526
1987-07-01	51.7802017190808
1987-10-01	52.0209605932941
1988-01-01	52.0713028003377
1988-04-01	52.1307129645247
1988-07-01	52.2407362125013
1988-10-01	52.2968703886604
1989-01-01	52.5800519098351
1989-04-01	52.8861440731547
1989-07-01	53.0415075244072
1989-10-01	53.2615951152215
1990-01-01	53.5498798002319
1990-04-01	53.6370806254304
1990-07-01	53.7780303955378
1990-10-01	53.8579080052314
1991-01-01	54.1499854514511
1991-04-01	54.3376143951760
1991-07-01	54.5057267224479
1991-10-01	54.6066475390295
1992-01-01	54.5598952026841
1992-04-01	54.4991606457187
1992-07-01	54.4279453213994
1992-10-01	54.5890380117811
1993-01-01	54.2117398199557
1993-04-01	54.1569437366416
1993-07-01	54.2140124025923
1993-10-01	54.3536551945855
1994-01-01	54.2630656738481
1994-04-01	54.2751236989699
1994-07-01	54.0257434556015
1994-10-01	54.0406916244544
1995-01-01	54.1151518908730
1995-04-01	54.0364876915598
1995-07-01	54.0829137568499
1995-10-01	54.0012430965511
1996-01-01	54.0733393389349
1996-04-01	54.2701957963958
1996-07-01	54.4633010536634
1996-10-01	54.4165341602465
1997-01-01	54.6928483672165
1997-04-01	54.8449741547221
1997-07-01	54.9596198348274
1997-10-01	54.9454163438943
1998-01-01	54.9780077242571
1998-04-01	54.8707308670665
1998-07-01	54.7391361900427
1998-10-01	54.5898250319681
1999-01-01	54.4924999634592
1999-04-01	54.5157895698050
1999-07-01	54.4776906594797
1999-10-01	54.3051567599704
2000-01-01	54.2190746281695
2000-04-01	54.3508408012176
2000-07-01	54.3401006921539
2000-10-01	54.4817500480565
2001-01-01	54.6346282459049
2001-04-01	54.4163748159351
2001-07-01	54.2816299834812
2001-10-01	54.3643782592604
2002-01-01	54.1597562106199
2002-04-01	53.9399557976328
2002-07-01	53.9762787283956
2002-10-01	54.0632003128978
2003-01-01	53.9917423210992
2003-04-01	54.0846821589708
2003-07-01	54.0519884449628
2003-10-01	54.0990228040195
2004-01-01	54.1996495712776
2004-04-01	54.1631883172788
2004-07-01	54.3625535857742
2004-10-01	54.2710389642581
2005-01-01	54.4715934228108
2005-04-01	54.6644578149272
2005-07-01	54.8030054917865
2005-10-01	54.7451971416324
2006-01-01	54.8587996224999
2006-04-01	54.9259351730271
2006-07-01	55.1414939342734
2006-10-01	55.3013510917772
2007-01-01	55.2100363703761
2007-04-01	55.4203752875992
2007-07-01	55.3721012283590
2007-10-01	55.6306608708023
2008-01-01	55.5470113315189
2008-04-01	55.7267888023580
2008-07-01	55.6528815220741
2008-10-01	55.7403227095916
2009-01-01	55.9968455406090
2009-04-01	55.9980629556488
2009-07-01	56.2193231950877
2009-10-01	56.1491914334242
2010-01-01	56.2272338439419
2010-04-01	56.2227623321482
2010-07-01	56.4488481372740
2010-10-01	56.5303340224779
2011-01-01	56.4402220194868
2011-04-01	56.1900758157198
2011-07-01	56.1591521045407
2011-10-01	56.4030177223727
2012-01-01	56.3099573884034
2012-04-01	56.5340443032988
2012-07-01	56.5763929367867
2012-10-01	56.6994800891590
2013-01-01	57.4090556784052
2013-04-01	57.5357023493317
2013-07-01	57.5886845007474
2013-10-01	58.3095991504913
2014-01-01	58.0491826785289
2014-04-01	58.2703880176976
2014-07-01	58.4045191321238
2014-10-01	58.8356552576019
2015-01-01	58.7569381019618
2015-04-01	58.8720387825713
2015-07-01	59.1490704363954
2015-10-01	59.2926291272835
2016-01-01	59.8361134962470
2016-04-01	59.8728201761154
2016-07-01	60.4526988690559
2016-10-01	60.6045776781542
2017-01-01	60.7245181165069
2017-04-01	61.3411165368385
2017-07-01	61.6868392164539
2017-10-01	62.0180318080265
2018-01-01	62.7578323794808
2018-04-01	63.1275825469326
2018-07-01	63.4898307353318