Quarter	Percent, Seasonally Adjusted
1978-01-01	50.9842163174049
1978-04-01	50.5777395035210
1978-07-01	50.5652818394579
1978-10-01	50.3803130753082
1979-01-01	50.2252520442347
1979-04-01	50.3310020604905
1979-07-01	50.2201274390984
1979-10-01	50.2091201867198
1980-01-01	50.3027674673434
1980-04-01	50.1463813336959
1980-07-01	49.9370329213161
1980-10-01	50.2659534547120
1981-01-01	50.2916622044149
1981-04-01	50.0772837765928
1981-07-01	50.0450609193153
1981-10-01	49.7069917611645
1982-01-01	49.5963961241941
1982-04-01	49.6585000932667
1982-07-01	49.7267107631779
1982-10-01	49.1552502453772
1983-01-01	48.3875265027192
1983-04-01	48.4434582815958
1983-07-01	48.4079842277351
1983-10-01	48.4744751065171
1984-01-01	48.6237767755156
1984-04-01	48.3869468111268
1984-07-01	48.2320562891949
1984-10-01	48.1756691041560
1985-01-01	48.2280288080395
1985-04-01	48.3497535817185
1985-07-01	48.3347932838340
1985-10-01	48.4786539490388
1986-01-01	48.2712504402783
1986-04-01	48.4134622726377
1986-07-01	48.3382858643200
1986-10-01	48.4042511867745
1987-01-01	48.3492361664838
1987-04-01	48.1928368703748
1987-07-01	48.2196821347950
1987-10-01	47.9786907748374
1988-01-01	47.9286447972197
1988-04-01	47.8692445532515
1988-07-01	47.7592530592022
1988-10-01	47.7030761075395
1989-01-01	47.4198596307248
1989-04-01	47.1136742208337
1989-07-01	46.9584944317176
1989-10-01	46.7383529893423
1990-01-01	46.4499313341282
1990-04-01	46.3629223202186
1990-07-01	46.2219321968946
1990-10-01	46.1420836777646
1991-01-01	45.8499910485245
1991-04-01	45.6623062451958
1991-07-01	45.4942247647078
1991-10-01	45.3931367190310
1992-01-01	45.4399883240180
1992-04-01	45.5007631172053
1992-07-01	45.5718661295767
1992-10-01	45.4109583039125
1993-01-01	45.7881802359723
1993-04-01	45.8430593807925
1993-07-01	45.7859861569912
1993-10-01	45.6462516356620
1994-01-01	45.7369073391715
1994-04-01	45.7247962454365
1994-07-01	45.9742178821878
1994-10-01	45.9592866215789
1995-01-01	45.8847911616169
1995-04-01	45.9635129873440
1995-07-01	45.9169757337004
1995-10-01	45.9987268498030
1996-01-01	45.9265257888435
1996-04-01	45.7296938483649
1996-07-01	45.5365554238402
1996-10-01	45.5834210920482
1997-01-01	45.3070304469119
1997-04-01	45.1548752364515
1997-07-01	45.0403328785888
1997-10-01	45.0544301242078
1998-01-01	45.0219185447981
1998-04-01	45.1292410840346
1998-07-01	45.2607895766393
1998-10-01	45.4101094288791
1999-01-01	45.5073693899871
1999-04-01	45.4840060596611
1999-07-01	45.5221851546093
1999-10-01	45.6948318023929
2000-01-01	45.7808905967266
2000-04-01	45.6491435931076
2000-07-01	45.6598839914050
2000-10-01	45.5182325903720
2001-01-01	45.3651727311702
2001-04-01	45.5835941003774
2001-07-01	45.7183110528686
2001-10-01	45.6354181009503
2002-01-01	45.8402325172370
2002-04-01	46.0600354323072
2002-07-01	46.0237184514529
2002-10-01	45.9367833363195
2003-01-01	46.0081946003697
2003-04-01	45.9151152831746
2003-07-01	45.9478918262048
2003-10-01	45.9009682754578
2004-01-01	45.8002888285497
2004-04-01	45.8366256261539
2004-07-01	45.6374044284124
2004-10-01	45.7287834404786
2005-01-01	45.5283600759036
2005-04-01	45.3353756524935
2005-07-01	45.1969822632342
2005-10-01	45.2545216895792
2006-01-01	45.1411385706076
2006-04-01	45.0739327344209
2006-07-01	44.8584835961535
2006-10-01	44.6984804581034
2007-01-01	44.7897889685856
2007-04-01	44.5796212157693
2007-07-01	44.6278910059634
2007-10-01	44.3692029983309
2008-01-01	44.4528693032813
2008-04-01	44.2731693685260
2008-07-01	44.3470786832842
2008-10-01	44.2594108390460
2009-01-01	44.0031123929356
2009-04-01	44.0019305926860
2009-07-01	43.7805759365397
2009-10-01	43.8507828796098
2010-01-01	43.7727619422676
2010-04-01	43.7772375112032
2010-07-01	43.5510694187770
2010-10-01	43.4696020572258
2011-01-01	43.5556296318655
2011-04-01	43.8099082342084
2011-07-01	43.8401269584196
2011-10-01	43.5969882430034
2012-01-01	43.6900803116872
2012-04-01	43.4659566449584
2012-07-01	43.4235976906860
2012-10-01	43.3005249866644
2013-01-01	42.5910011132599
2013-04-01	42.4642403026701
2013-07-01	42.4113467236336
2013-10-01	41.6904304572724
2014-01-01	41.9508516226328
2014-04-01	41.7296599023823
2014-07-01	41.5954701695323
2014-10-01	41.1643421676592
2015-01-01	41.2430697401708
2015-04-01	41.1280261803106
2015-07-01	40.8509833122173
2015-10-01	40.7074149661882
2016-01-01	40.1637801219488
2016-04-01	40.1272625075863
2016-07-01	39.5472785401580
2016-10-01	39.3955225472773
2017-01-01	39.2754578644986
2017-04-01	38.6590855625751
2017-07-01	38.3131816749422
2017-10-01	37.9819862960656
2018-01-01	37.2422834531545
2018-04-01	36.8723359691638
2018-07-01	36.5102374076706