Quarter	Percent, Seasonally Adjusted
1978-04-01	36.2982338275226
1978-07-01	36.4074446747194
1978-10-01	36.6994448873940
1979-01-01	36.5878533137453
1979-04-01	36.4675716807266
1979-07-01	36.1812387846142
1979-10-01	35.5304041429695
1980-01-01	34.9521863357279
1980-04-01	33.8194785502705
1980-07-01	33.1895132924181
1980-10-01	33.4228221929906
1981-01-01	34.5672495306454
1981-04-01	34.5526178317874
1981-07-01	34.1346556339392
1981-10-01	34.8259596979930
1982-01-01	34.2623038843001
1982-04-01	34.4856672598057
1982-07-01	35.2039769712045
1982-10-01	34.6235946467641
1983-01-01	35.1511016851597
1983-04-01	34.2331994565068
1983-07-01	33.8776121699931
1983-10-01	33.3685803235589
1984-01-01	33.7158322836204
1984-04-01	33.2260926024068
1984-07-01	34.0710984412376
1984-10-01	34.4578092037951
1985-01-01	33.8755390052798
1985-04-01	33.3557414386318
1985-07-01	32.9316427428802
1985-10-01	32.9154937522192
1986-01-01	32.4900569034353
1986-04-01	31.6552194294096
1986-07-01	32.1972405463247
1986-10-01	31.8696636623715
1987-01-01	32.0035237483875
1987-04-01	32.4891457979769
1987-07-01	32.8859303999119
1987-10-01	32.1022794940045
1988-01-01	32.3645351668792
1988-04-01	32.5509345579338
1988-07-01	33.1561240307696
1988-10-01	32.8116900437095
1989-01-01	31.2633542924940
1989-04-01	31.2791141857939
1989-07-01	31.1487242162584
1989-10-01	31.5297806630108
1990-01-01	31.1713793857481
1990-04-01	31.2239220845566
1990-07-01	30.6730518461954
1990-10-01	31.5217039410981
1991-01-01	32.7716863264262
1991-04-01	33.0883192940385
1991-07-01	33.5462401894857
1991-10-01	33.8583729623379
1992-01-01	34.0150248034269
1992-04-01	33.7682395708659
1992-07-01	33.0047129273862
1992-10-01	33.3189746875031
1993-01-01	33.7876342746497
1993-04-01	35.0009112044794
1993-07-01	34.5760303538514
1993-10-01	33.7427075610596
1994-01-01	32.1112316562750
1994-04-01	32.3531637669725
1994-07-01	31.4646713256289
1994-10-01	31.5873379420639
1995-01-01	30.5604866610836
1995-04-01	30.3612267951887
1995-07-01	30.6140031310419
1995-10-01	30.2990539858384
1996-01-01	30.6140009056113
1996-04-01	30.1605557194267
1996-07-01	30.2470780768210
1996-10-01	31.0746624296883
1997-01-01	31.8071673651085
1997-04-01	32.5395928287650
1997-07-01	32.9401636752569
1997-10-01	32.6959304046633
1998-01-01	32.7567629883284
1998-04-01	32.7536442286010
1998-07-01	32.2696901292020
1998-10-01	31.8242264932250
1999-01-01	31.8913673679291
1999-04-01	32.1526643644005
1999-07-01	32.2308944746622
1999-10-01	31.9212980515655
2000-01-01	32.2250007560095
2000-04-01	31.5673812326187
2000-07-01	30.8773694739814
2000-10-01	31.5849911772304
2001-01-01	31.3799197266267
2001-04-01	30.4137904673843
2001-07-01	31.0187756917463
2001-10-01	30.9008169798233
2002-01-01	31.8294210135286
2002-04-01	32.5515277001228
2002-07-01	31.6309818632023
2002-10-01	31.1414756344873
2003-01-01	30.5424325191739
2003-04-01	31.4575576886090
2003-07-01	31.3215144822154
2003-10-01	30.6629413736768
2004-01-01	30.6322501378765
2004-04-01	30.8666899790257
2004-07-01	31.4747174150761
2004-10-01	30.7476207562498
2005-01-01	30.4911443456220
2005-04-01	30.3421199392335
2005-07-01	30.3688703279245
2005-10-01	30.5640881897907
2006-01-01	30.7624943478648
2006-04-01	30.6482694472336
2006-07-01	30.0190135490049
2006-10-01	30.6385672165564
2007-01-01	30.6121211649352
2007-04-01	30.3603292575043
2007-07-01	30.2930043405291
2007-10-01	29.9795769904501
2008-01-01	30.2748154912962
2008-04-01	29.7751870096599
2008-07-01	30.4367195809021
2008-10-01	31.5753058513799
2009-01-01	31.8273060038301
2009-04-01	32.5193934677398
2009-07-01	32.8671537769766
2009-10-01	31.8562246034852
2010-01-01	32.4267334531567
2010-04-01	32.9386051845734
2010-07-01	33.0055429986668
2010-10-01	32.8304499498203
2011-01-01	31.8593187956144
2011-04-01	32.5930290629514
2011-07-01	32.3911884054846
2011-10-01	33.2770585793246
2012-01-01	32.6842224621094
2012-04-01	32.5007656715615
2012-07-01	33.8080645678372
2012-10-01	33.8839121213931
2013-01-01	33.7478620002284
2013-04-01	33.9215908734643
2013-07-01	33.1536672132363
2013-10-01	34.1043222706662
2014-01-01	33.7739647747287
2014-04-01	33.8778333020901
2014-07-01	33.6780387649023
2014-10-01	33.7458926499259
2015-01-01	33.9343311634491
2015-04-01	33.3195968527066
2015-07-01	33.0444253344564
2015-10-01	32.8683933141366
2016-01-01	33.8781778385577
2016-04-01	32.7991412068085
2016-07-01	33.7567301867293
2016-10-01	34.1046594905119
2017-01-01	34.1267949351219
2017-04-01	34.4318841995159
2017-07-01	33.1176896921269
2017-10-01	32.9685512045812
2018-01-01	32.2283444802715
2018-04-01	32.1670613856727
2018-07-01	32.9037031132508