Quarter	Percent, Seasonally Adjusted
1978-04-01	22.5183691545270
1978-07-01	22.2565307041068
1978-10-01	21.7227446367726
1979-01-01	21.6456593353184
1979-04-01	21.1042709602187
1979-07-01	20.5984143572063
1979-10-01	20.5061134108025
1980-01-01	21.1032791378500
1980-04-01	21.8397830012417
1980-07-01	22.5590616237611
1980-10-01	21.8017052751675
1981-01-01	21.0822133732307
1981-04-01	20.7392649263322
1981-07-01	21.6545796942625
1981-10-01	21.3511462035846
1982-01-01	20.5818270556460
1982-04-01	19.8302255762879
1982-07-01	18.8839897597625
1982-10-01	20.5941549739997
1983-01-01	21.2245282453922
1983-04-01	20.3068874770290
1983-07-01	20.7381188385100
1983-10-01	20.3505227246783
1984-01-01	20.8974377001475
1984-04-01	20.6657755296425
1984-07-01	20.4376847725034
1984-10-01	20.6594132520681
1985-01-01	20.4311864634196
1985-04-01	19.8041200668987
1985-07-01	20.1410298040714
1985-10-01	20.3192420814253
1986-01-01	21.1593300847556
1986-04-01	21.6145872432790
1986-07-01	21.1388710288753
1986-10-01	21.6703208029254
1987-01-01	22.5056593858460
1987-04-01	22.5131700640322
1987-07-01	22.2084607122177
1987-10-01	21.6700679489312
1988-01-01	22.1094947380961
1988-04-01	22.5865427847883
1988-07-01	22.8456836959874
1988-10-01	23.5653510408536
1989-01-01	23.8433021170780
1989-04-01	23.8650177815120
1989-07-01	23.3024080540850
1989-10-01	23.4548516870154
1990-01-01	23.3852165571409
1990-04-01	24.3006445705147
1990-07-01	25.6269063004927
1990-10-01	26.0645381819288
1991-01-01	25.4703412005752
1991-04-01	25.4625254330440
1991-07-01	24.9385024673434
1991-10-01	25.6134244748133
1992-01-01	25.3137188364205
1992-04-01	25.2661666002786
1992-07-01	25.4498480023756
1992-10-01	25.0185984578096
1993-01-01	25.8151748583443
1993-04-01	25.4763687827338
1993-07-01	26.5288973065117
1993-10-01	27.0188034461123
1994-01-01	27.3178565798107
1994-04-01	27.7129949268629
1994-07-01	27.7884375682832
1994-10-01	27.8730106666069
1995-01-01	27.5407355990019
1995-04-01	28.3737459190495
1995-07-01	28.3895570139171
1995-10-01	29.7268151821655
1996-01-01	31.0860563840165
1996-04-01	30.6045254225491
1996-07-01	30.9393065973893
1996-10-01	30.7328472920540
1997-01-01	31.3884157930609
1997-04-01	31.1628220827699
1997-07-01	31.1788812137129
1997-10-01	31.0425532941777
1998-01-01	31.5768188152924
1998-04-01	32.4292093477851
1998-07-01	32.8619726139371
1998-10-01	32.2662727376450
1999-01-01	31.6649649916160
1999-04-01	31.5959528154622
1999-07-01	32.6150432307311
1999-10-01	33.6759744961682
2000-01-01	34.7270248450203
2000-04-01	35.5018996642532
2000-07-01	35.7522481261201
2000-10-01	35.3628458356869
2001-01-01	35.7988462228842
2001-04-01	37.2795730181020
2001-07-01	37.2174932468844
2001-10-01	38.1123947569520
2002-01-01	39.2587648660768
2002-04-01	38.6266313871813
2002-07-01	38.6551012524842
2002-10-01	39.6964469236752
2003-01-01	40.4292390783462
2003-04-01	41.0491587828413
2003-07-01	40.8589725408466
2003-10-01	40.9449014128554
2004-01-01	41.0677426372380
2004-04-01	41.9834832753324
2004-07-01	43.2214052644000
2004-10-01	43.3869691706343
2005-01-01	43.8589764486216
2005-04-01	43.7773138343585
2005-07-01	44.7345886342545
2005-10-01	45.2137419807828
2006-01-01	46.2707711304601
2006-04-01	46.8623043648632
2006-07-01	47.7123018407429
2006-10-01	48.0382439505414
2007-01-01	48.2107391001672
2007-04-01	48.5195781003361
2007-07-01	48.5830392603931
2007-10-01	48.9092851523167
2008-01-01	49.2592974688934
2008-04-01	49.7110322669211
2008-07-01	50.6740645664396
2008-10-01	50.7170596022403
2009-01-01	52.5095096043146
2009-04-01	52.8111895882778
2009-07-01	52.3263961231551
2009-10-01	53.8532024912882
2010-01-01	53.9634076424193
2010-04-01	53.4886439412935
2010-07-01	54.2060634714998
2010-10-01	54.9232664029559
2011-01-01	54.2918810511142
2011-04-01	54.6241007074880
2011-07-01	55.6254086701608
2011-10-01	55.3600675945754
2012-01-01	55.5631028961997
2012-04-01	55.5984649837844
2012-07-01	55.9175499116318
2012-10-01	55.5655346753058
2013-01-01	55.9265014797551
2013-04-01	56.2857944966189
2013-07-01	55.5030466221200
2013-10-01	55.4440105242548
2014-01-01	55.6864698425936
2014-04-01	56.1841924365644
2014-07-01	56.5898001807941
2014-10-01	56.2240156365350
2015-01-01	56.5124478770118
2015-04-01	56.5856218406440
2015-07-01	57.0672627721119
2015-10-01	58.9029590440313
2016-01-01	59.1907669461964
2016-04-01	58.7533475942564
2016-07-01	58.3773217192327
2016-10-01	58.9806626163089
2017-01-01	59.8052072313889
2017-04-01	60.3855953831601
2017-07-01	60.0903896138145
2017-10-01	60.0967004986264
2018-01-01	59.9091958566534
2018-04-01	60.2036536970824
2018-07-01	60.7765273580431