Quarter	Percent, Seasonally Adjusted
1978-04-01	56.2914829958296
1978-07-01	56.3478137623176
1978-10-01	56.5488159364757
1979-01-01	56.5818683498831
1979-04-01	56.7082022915107
1979-07-01	56.5966421346797
1979-10-01	55.9263182033204
1980-01-01	55.6174201825617
1980-04-01	55.2534283143975
1980-07-01	54.8687396173936
1980-10-01	55.2875594250357
1981-01-01	55.5207379972552
1981-04-01	55.3629195635993
1981-07-01	55.0985161983044
1981-10-01	55.1876985394581
1982-01-01	55.1914045779065
1982-04-01	55.4083681401464
1982-07-01	55.6064764430854
1982-10-01	55.2942555864828
1983-01-01	55.4328800384169
1983-04-01	55.5358292114765
1983-07-01	55.2554714133493
1983-10-01	55.2594591748489
1984-01-01	55.1887110179432
1984-04-01	54.6421207067052
1984-07-01	54.6688116741324
1984-10-01	54.4884164492173
1985-01-01	54.1774722547767
1985-04-01	54.1643738178635
1985-07-01	53.6011039822944
1985-10-01	53.0338675699546
1986-01-01	52.4222874939839
1986-04-01	51.6642329973666
1986-07-01	51.5765801271363
1986-10-01	51.3393567799365
1987-01-01	51.2615352652211
1987-04-01	51.1633286295253
1987-07-01	51.1176354106687
1987-10-01	50.8829269120988
1988-01-01	50.4244227245937
1988-04-01	50.1517344629213
1988-07-01	50.2724076590900
1988-10-01	49.8914020531649
1989-01-01	49.3582206214415
1989-04-01	48.9223794841870
1989-07-01	48.6063379857546
1989-10-01	48.2774493749269
1990-01-01	48.0427847158460
1990-04-01	47.7163042718906
1990-07-01	47.5594588352246
1990-10-01	47.7289255419154
1991-01-01	47.9147900483437
1991-04-01	47.7355685956793
1991-07-01	48.1179289738597
1991-10-01	48.3342868269569
1992-01-01	47.9871509235463
1992-04-01	48.1666323998964
1992-07-01	47.9436340220351
1992-10-01	48.1825024269725
1993-01-01	48.3083068716816
1993-04-01	48.7535560255606
1993-07-01	48.3796593686590
1993-10-01	47.7146495693952
1994-01-01	47.6405708616407
1994-04-01	47.6708535256468
1994-07-01	47.1495357767488
1994-10-01	47.1886642352570
1995-01-01	46.8796173850824
1995-04-01	46.4432891843026
1995-07-01	46.3307431319951
1995-10-01	45.9927376612032
1996-01-01	46.1251312051617
1996-04-01	46.2554136393289
1996-07-01	46.1829019164884
1996-10-01	46.2756604988998
1997-01-01	46.1773300142340
1997-04-01	46.4504820790195
1997-07-01	46.5298764462011
1997-10-01	46.5508760240960
1998-01-01	46.6438391463238
1998-04-01	46.4036057510012
1998-07-01	46.1378215492940
1998-10-01	46.2632663699833
1999-01-01	46.5608857774755
1999-04-01	46.6193238829678
1999-07-01	46.3965575068119
1999-10-01	45.9273554371780
2000-01-01	45.8797827071670
2000-04-01	45.4422390191536
2000-07-01	45.0798086981313
2000-10-01	45.5971155151698
2001-01-01	45.3725811152460
2001-04-01	44.6369679699225
2001-07-01	44.9044674449756
2001-10-01	44.8164808422888
2002-01-01	44.8548970212751
2002-04-01	45.1996324799562
2002-07-01	44.7190557474943
2002-10-01	44.2895025902611
2003-01-01	43.7485521685751
2003-04-01	43.9867322420507
2003-07-01	44.2439838041492
2003-10-01	44.3817429476052
2004-01-01	44.5803245099288
2004-04-01	44.4978771575478
2004-07-01	44.3088637190018
2004-10-01	43.8775458558748
2005-01-01	43.3014861554879
2005-04-01	43.0660670740837
2005-07-01	42.9132217942788
2005-10-01	42.8760170488674
2006-01-01	42.8568055366308
2006-04-01	42.5360182865825
2006-07-01	42.2475706421213
2006-10-01	42.2969957871043
2007-01-01	42.1463762107728
2007-04-01	42.1204243576536
2007-07-01	41.8658225941800
2007-10-01	41.5940707733418
2008-01-01	41.6131178131196
2008-04-01	41.4057920233139
2008-07-01	41.3431275556125
2008-10-01	41.4360431652028
2009-01-01	40.9810847744625
2009-04-01	41.1465123749318
2009-07-01	41.4474638468411
2009-10-01	41.4244203572459
2010-01-01	41.5735464614370
2010-04-01	41.6134542782556
2010-07-01	41.3228464277629
2010-10-01	41.0313424479400
2011-01-01	41.1357293623104
2011-04-01	41.1947241890315
2011-07-01	41.0176156386014
2011-10-01	41.1879132766215
2012-01-01	41.2292714060570
2012-04-01	41.1501085194357
2012-07-01	41.2021772462855
2012-10-01	41.3227800350340
2013-01-01	41.1696882726443
2013-04-01	41.1710936808631
2013-07-01	41.3259939409293
2013-10-01	41.5528277147585
2014-01-01	41.3460156289488
2014-04-01	41.3557179843283
2014-07-01	41.2422000929191
2014-10-01	41.4555010973929
2015-01-01	41.2392640554255
2015-04-01	41.1005956640888
2015-07-01	40.7965985570403
2015-10-01	40.4009271421532
2016-01-01	40.5668587340939
2016-04-01	40.5135642153883
2016-07-01	40.7695679698668
2016-10-01	40.7794690500919
2017-01-01	40.6059926998164
2017-04-01	40.3450549629192
2017-07-01	40.0431952094620
2017-10-01	39.6446355086930
2018-01-01	39.4429559590001
2018-04-01	39.4558591090658
2018-07-01	39.6300617488392